herein2020

I for one prefer a larger camera because the weight makes hand holding steadier but you want to know what I don't believe in? External recorders. For me it has nothing to do with weight or size, it has to do with one more thing that can go wrong, more wires to carry, more batteries to charge, and external recorders are a single point of failure if their hard drive gets corrupt. I agree with @MrSMW and @Phil A as a hybrid shooter every single extra piece of equipment becomes a PITA when on set as a hybrid solo shooter.
 
For my use case I am almost always shooting solo, on a single shoot I could be dealing with light stands, studio strobes, remote flash triggers, photo camera body and diffusers; I could also be shooting video clips from a tripod or handheld, monopod, and sometimes gimbal.....mixed into all of that of course are lenses, expo discs, ND filters, and sometimes audio which includes lavs, XLR adapters, and transmitters / receivers or XLR wiring. Lets not forget continuous video lighting, smoke machines etc.. let's not forget the obligatory drone which is needed for a few big picture drone video clips, and if a timelapse is needed that's a 3rd camera body, and lets not forget underwater if its a lifestyle shoot that wants to showcase their pool or a modeling swimwear shoot so that's a 4th camera body....all as a one man shooter.
So you ask what has happened over the last decade? What happened is customers expect more than ever before but at the same time they pay less than ever before.  In my particular area the local market is saturated with photographers and videographers all under cutting each other bidding on the same clients; those same clients that half the time feel like cell phone footage is probably good enough anyway so why bother hiring us to begin with. So yes, I absolutely will gladly use the absolute smallest simplest configuration possible to get the job done.  This is why I got the S5, this is why I have an EF adapter to minimize my lens kit, this is why I don't use anything external if I can help it including recorders or even monitors, and this is also why I don't care as much about RAW as I do about 4K 10 bit internally recorded. Yes BRAW 12:1 would be nice when its time to edit the footage but 10bit 4K recorded internally to dual cards is WAY more important to me as is a single lens mount that will work on everything from my C200 to my 5DIV to my S5.
 
Specs are great to read about or watch on YouTube. but they are a tiny part of the big picture and the realities you face working in this industry every day. And I'm not talking about the big name commercial production industry, I'm talking about the in between industry where you are a shooter like me shooting weddings, music videos, small business promo videos, corporate events, real estate marketing videos, etc. There is a ton of paying work in this space that simply doesn't pay quite enough to bring in entire teams and assistants.

EF-S lenses will not work on the S5. Even though the S5 has an APS-C mode for video it did not seem to make a difference, you could still see the lens barrel in the image I even tried PIXEL:PIXEL mode (no idea what that mode is but it sounded interesting) and I still couldn't use the EF-S lenses.
I don't know about the Godox O line but I can tell you the Godox C line (Canon) works with the S5. I'm not sure about the TTL features since I never use TTL and only shoot manual flash but the Godox C multi flash triggers and the flashes themselves mounted to the hotshoe work just fine. I'm waiting for Lightroom and Photoshop RAW support for the S5 to start testing the photography features. I don't feel like hacking the metadata just to process the RAW images.

I think at this point you are focusing too much on things at the pixel peeping level that won't matter to most people. 60FPS is pretty much the new standard and will probably look identical between the S1H, S5, and GH5 as well as most others that shoot 4K 60FPS when all else is equal (DR. Color Science, etc). I have always considered the high frame rate stuff where it does it in camera to be a bit of an exotic workaround that will never yield the same results as doing it the traditional way by increasing the framerate in the file. 
Also, are you planning on using the new body 100% for video and don't care about the size and weight of the S1H, if so I'd get the S1H. If you have any photography plans at all, or you are trying to setup a light travel/docu kit then the S5 would probably be the best bet. I really think either camera has the specs needed to exceed the capabilities of most filmmakers and it will really come down to how well each one meets your individual needs or fits into your current or planned workflow.
I did a ton of my own research on the S1H, the S5, and the R6 prior to choosing the S5 and at the end of the day the S5 simply met my needs better in more areas than the other options. A final selling point for me was using the S5 on a gimbal. The S5 with the EF adapter combined with the Canon 24mm 2.8 is actually lighter and smaller than my previous GH5 setup. 

I think at this point you are focusing too much on things at the pixel peeping level that won't matter to most people. 60FPS is pretty much the new standard and will probably look identical between the S1H, S5, and GH5 as well as most others that shoot 4K 60FPS when all else is equal (DR. Color Science, etc). I have always considered the high frame rate stuff where it does it in camera to be a bit of an exotic workaround that will never yield the same results as doing it the traditional way by increasing the framerate in the file. 
Also, are you planning on using the new body 100% for video and don't care about the size and weight of the S1H, if so I'd get the S1H. If you have any photography plans at all, or you are trying to setup a light travel/docu kit then the S5 would probably be the best bet. I really think either camera has the specs needed to exceed the capabilities of most filmmakers and it will really come down to how well each one meets your individual needs or fits into your current or planned workflow.
I did a ton of my own research on the S1H, the S5, and the R6 prior to choosing the S5 and at the end of the day the S5 simply met my needs better in more areas than the other options. A final selling point for me was using the S5 on a gimbal. The S5 with the EF adapter combined with the Canon 24mm 2.8 is actually lighter and smaller than my previous GH5 setup. 

Don't forget the S5 has a mini HDMI port vs the S1H with the full HDMI port so if you use an external monitor a lot that could be pretty important. For me personally, the S line never interested me until the S5 due to the cost of the bodies and the lenses. With the S5's reduced cost and the EF lens adapter, my two main reasons for not considering the S line were removed. For the S1H specifically, I was never sold on the fan either. Of course it prevents overheating when shooting video, but for hybrid photo/video shoots I felt like too much dust and moisture could get pulled into the body via the fan.
As far as All-I goes, most if not all of the tests that I have seen say there is no difference in 99% of the scenarios, supposedly All-I is easier to edit since there's a keyframe for every frame, but the data rates are so high that you need special cards to support it, storage is up to 4x more required, and it is still LongGOP compression; I would rather create temp proxies than deal with the headache of All-I. For All-I data rates I'd rather skip straight to raw if I'm going to deal with that kind of headache.

@MrSMW @elgabogomez I stick to the 180 degree rule most of the time especially outdoors. To my eyes if you are filming pretty much anything with a lot of motion in the image it looks almost like the image is stuttering when the shutter speed is too high. 
 
Where I do ignore it however is on the opposite end. With the GH5 I did everything possible to not go over ISO 1600...so if the lens was wide open and it still wasn't enough light I would try dropping the shutter speed to match the frame rate to get a tiny bit more light before having to increase the ISO. This trick worked for me quite a few times.  I also ignore it for drone work. With the wide lenses of the drones and high up in the air nothing is moving fast enough to make it obvious that the motion blur does not match.

Maybe the delay is switching between the C modes. When I switch from Photography to Video even if the video frame rate is set to 60FPS there is no delay. I don't use the C modes though. Or it could be one of the other settings that causes a delay like auto ISO or auto shutter. All of my settings for both Photo and Video are manual so maybe with auto it calculates the proper values prior to showing you the new setup.

I've only got one question...does it return to center after a pan? I was a DJI fan after using their drones, but the Ronin S and their refusal to fix a rudimentary feature of any gimbal has made me feel the same way about them that I feel about Canon deliberately crippling the R5 and R6's video features.

Yeah 85% might make more sense in a controlled situation but if I am just shooting in natural light I like to expose the highlights as high as I can (again depending on the situation). 

What is your reference for that? Everything I've read talks about 42% for middle gray with a color chart but good luck using that at an event or a hybrid shoot. Every guide I have read is also always vague when it comes to scenes that should be dark. 
This is one of the best guides I've found and it is for cameras with 14 stops of dynamic range (like the S5) and VLOG. This guide says to set the zebras at 90%. https://na.panasonic.com/ns/253602_V-Log_Excerpt.pdf
After watching a few videos though, I do have a new strategy for quickly getting exposure for the two toughest types of scenes that I typically encounter (events with changing lighting conditions where people need to be properly exposed, and venues with bright windows). 
 -  BASE / RANGE Zebras - I found another awesome feature in the S5 which is the BASE/RANGE option which lets you set a zebra pattern based on  F stop which maps to a VLOG percentage. So from now on when exposing for people with no gray card I'm going to turn that one on until there are zebras on the people's faces which means they are properly exposed. For venues with bright windows I'll just expose to where the zebras are on most of the objects in the room.
 
- Vertical Video - I found by accident that the S5 even does vertical video. So if you are shooting something that you only plan on showing on Instagram...something like a quick BTS for a shoot, you can film it vertically and it will play full screen on Instagram.
 
I think gimbals definitely have their place, like @TomTheDPsaid, there's going to be shots that you simply cannot get any other way. Dolly in/out, Crane up/down, extended left/right trucks, follow, orbit, underslung.....you name it, there's simply no other way to get those shots quickly and in a way that is smooth without a gimbal.  I use my monopod to the hilt to get every bit of organic motion that I can but its never going to replace a gimbal.
I do think gimbals are overdone for a lot of things, just like drones; nothing more boring than your average drone video with nothing but drone shots, but they both can tell parts of a story in ways that are impossible any other way for a one man band. Also, maybe I am just way shakier than everyone else, but filming hand held for me is really difficult with these smaller cameras. No matter what technique I use, I always seem to need to add a little post stabilization or slow motion to get enough of the clip to use.
 

I completely loathe my Ronin-S as well, in fact, I posted so much on the DJI forum about its complete failure to return to center that I got banned there; no other gimbal on the planet has this problem and DJI completely refuses to acknowledge or fix it;  in fact no other gimbal that DJI makes including their drones, the Ronin M/MX, Ronin etc does this......but that's a different rant for a different day. It is without a doubt the most annoying piece of gear that I own. 
 
I  don't like the Crane either; the shape with the permanent low slung handle just doesn't appeal to me; the gimbal that I really want to try is the Lotus Helix but almost no one talks about it. There is a guy in LA that shoots amazing dance videos and he uses it, but that's the only one I could find. So I'm stuck with the Ronin S, I've fiddled with the settings and calibration endlessly and now I have 3 modes programmed in that work for me (real estate, general purpose, and music video). 
 
As far as locking up the camera, personally I would never attach any of these gimbals to the camera. I feel like DJI and the rest of them came up with a hack to get the AF to work in ways that is not supported by the vendor. I'm perfectly fine with MF on the gimbal; sure its more work, and sure you will have to throw away some footage, but its better than frying your camera or having the AF drift off to the background somewhere during a critical moment.
 
This past year, my gimbal use really declined, I shoot more and more footage with just a monopod or handheld. 

I figured out what happened, the last line in their specs on screen was the 60FPS options and the video went behind my taskbar on my desktop so it was covering up that last line.
My S5 gets here today, and the EF adapter should be here Friday. I do wish the GH5 batteries worked with it since I was not able to order any additional batteries.

I already took it back......the whole situation was unbearable for me, I live in a very hot humid climate which is like that 8 months out of the year; I can't wonder before every shoot if the camera will make it through the shoot. I did try pulling the battery once while it was on and changing the date just to see if the timer would add time...but I probably did it in the wrong order or something so it did not work for me.
For my particular situation the R6 simply was not fit for anything but photography. I now own the Panasonic S5 and so far it is amazing in nearly every way.  In case you haven't seen my review, you can read more about it on this thread: 
 

I tried that LUT, I didn't like it, I don't know why the manufacturers LUTS are usually not very good. Obviously it is all subjective, but I think the maker's LUTS are always based on perfect exposure and proper lighting. Any run and gun shooter knows that those conditions are rare to never so the 3rd party LUTs when done properly, look better to me.
 
I think I have found the perfect VLOG to Rec.709  LUT for my uses. This is a free LUT from Ground Control. For me, the VLOG to Rec709 LUT is always the most important since it lays the foundation for the color grade and it is what's needed to match it to other cameras. After that, I make slight adjustments to exposure if needed for each clip, then overlay an adjustment clip with a creative grade over the whole project. Below is the link to the Ground Control LUT, I went back and tested it on my Street Video test project and it added a little more contrast without crushing the blacks so the clips look like they have more DR.  It also didn't completely crush the lows like the Panasonic Varicam LUTS did (Nicest 709 LUT and Aggressive 709 LUT from Panasonic).
 
The main thing I look for in a Rec.709 LUT is one that isn't too hard to expose for (the Leeming LUT for example always seemed so difficult to properly expose for with the GH5) and one that results in the best starting point for the color grade across a wide variety of scenes.
 
Ground Control VLOG to Rec.709 Free LUT
https://groundcontrolcolor.com/products/free-sony-v-log-to-rec-709-lut
 
 
Here is an example of the 3 different LUTS with the exact same scene and no other changes. I was probably a little under exposed for this scene because I was trying to protect the sky....the GC LUT nicely kept the sky and brought up the lows.
 
 

I tried that LUT, I didn't like it, I don't know why the manufacturers LUTS are usually not very good. Obviously it is all subjective, but I think the maker's LUTS are always based on perfect exposure and proper lighting. Any run and gun shooter knows that those conditions are rare to never so the 3rd party LUTs when done properly, look better to me.
 
I think I have found the perfect VLOG to Rec.709  LUT for my uses. This is a free LUT from Ground Control. For me, the VLOG to Rec709 LUT is always the most important since it lays the foundation for the color grade and it is what's needed to match it to other cameras. After that, I make slight adjustments to exposure if needed for each clip, then overlay an adjustment clip with a creative grade over the whole project. Below is the link to the Ground Control LUT, I went back and tested it on my Street Video test project and it added a little more contrast without crushing the blacks so the clips look like they have more DR.  It also didn't completely crush the lows like the Panasonic Varicam LUTS did (Nicest 709 LUT and Aggressive 709 LUT from Panasonic).
 
The main thing I look for in a Rec.709 LUT is one that isn't too hard to expose for (the Leeming LUT for example always seemed so difficult to properly expose for with the GH5) and one that results in the best starting point for the color grade across a wide variety of scenes.
 
Ground Control VLOG to Rec.709 Free LUT
https://groundcontrolcolor.com/products/free-sony-v-log-to-rec-709-lut
 
 
Here is an example of the 3 different LUTS with the exact same scene and no other changes. I was probably a little under exposed for this scene because I was trying to protect the sky....the GC LUT nicely kept the sky and brought up the lows.
 
 

I have the sennheiser g4's, they are great, I'm not an audio guy but I set them up once and  have never touched their settings since then. I put the batteries in them and go. 
 
Iv had them work through walls, over a hundred feet away, etc. Iv never had interference or had the audio drop.

I shot some quick test footage today just to test my workflow from end to end prior to a paying project. The S5 is so easy to grade, I haven't even read the official how to on properly exposing VLOG and I'm using a VLOG to Rec709 LUT that I don't even know where it came from so I'm sure I'm doing it all wrong. Also I really wanted to test lowlight and the dual gain ISO so I shot some night footage. Everything is hand held, I stuck to 29.97 to test the IBIS, also I was using the kit lens so I needed every bit of shutter speed I could get.  The picture at 4000 ISO was noisier than I thought it would be considering it has dual ISO.
 
Also, I edited the video on a 1080P timeline then upscaled it to 2K which is how I usually do it so that I can recompose and crop in 4K.
 

I shot some quick test footage today just to test my workflow from end to end prior to a paying project. The S5 is so easy to grade, I haven't even read the official how to on properly exposing VLOG and I'm using a VLOG to Rec709 LUT that I don't even know where it came from so I'm sure I'm doing it all wrong. Also I really wanted to test lowlight and the dual gain ISO so I shot some night footage. Everything is hand held, I stuck to 29.97 to test the IBIS, also I was using the kit lens so I needed every bit of shutter speed I could get.  The picture at 4000 ISO was noisier than I thought it would be considering it has dual ISO.
 
Also, I edited the video on a 1080P timeline then upscaled it to 2K which is how I usually do it so that I can recompose and crop in 4K.
 

There is an R5/R6 user experience thread so I figured it was safe to start a Panasonic S5 user experience thread.  I've only shot with it for a few hours, mostly setting up (and learning) the menus and I know there are already endless YouTube reviews, but I thought I'd share my thoughts on my experience so far; completely unbiased, unsponsored and as someone who will use this camera for everything from music videos to weddings and if all goes well I might even use it for photo shoots.

Since there is so much that I like about this camera I've decided to just put my dislikes first because it is such a short list.
The Grip - This is my biggest dislike. holding the camera is so uncomfortable. The grip is really shallow and the strap mount sticks out and digs into your hand when you are holding it in a landscape configuration. Not so much a problem with video for me since I use the back display, but using the viewfinder for images is very uncomfortable. I'm going to try getting a dual battery grip to see if that improves it. The R6 by comparison feels like it was custom molded for my hands. The Lens Mount - I knew this going into it, but there are so few native Panasonic lenses for this camera that I will have to use an adapter which I hate doing. I know more lenses are coming but they are very expensive and everything I've read says the Sigma versions focus very slowly. I would love a Voigtlander fully manual 35mm lens for gimbal work like I have for the GH5. I have no idea yet what I will do for photography or if I will ever trust this camera for paid photo shoots. The Battery - I don't understand the battery at all. It fits the GH5 and has contacts for the GH5 yet for the S5 the contacts are on the other side? Why didn't they do what Canon did and simply make a higher capacity battery with the same contacts?  Not only are spare batteries impossible to find right now, this means all of my GH5 batteries won't work in this camera....so annoying. Ok, short list over now lets get to the stuff I care about that made me realize this was truly the camera for me. I first ordered the R6 and returned it (horrible user experience for my needs) so I am going to kind of compare my experience with the S5 to the R6 since they probably kind of are targeted to the same buyer and since it is hard to ignore the Canon hype machine even when you know about the R6's overheating issues. 
No Overheating - Ok we all know that but I had to put it out there anyway. This was the number one reason I returned the R6. The S5 on the other hand shoots glorious 4K until the card fills up (some limitations of course for 10 bit and 60FPS but it does have unlimited modes). Even if the R6 didn't overheat you would still hit that 30min limit and every single 4K mode overheated. Dual Slot Video Recording - The S5 gives me every option I could want and even a few I don't care about. The R6 will only record to a single slot. Electronic Level Meter - The S5 has it....of course, and it actually stays on while recording video. For some crazy reason the R6 disables the electronic level from showing on screen while recording video. XLR Audio Module - As annoyed as I am at Panasonic for the battery situation, the XLR module from the GH5 works with the S5 so all is almost forgiven. The R6 of course has nothing for XLR. I tested the module today, the S5 recognized it instantly and the audio was perfect. Free VLOG - Ok "Free" is a very generous term, but it does not cost extra. And this is real VLOG not some flavor that just flattens the profile, unlike the R6 which currently ships with CLOG. Canon said CLOG3 was coming in the future, but who knows if it will actually include the R6 or when "the future" really is. Body Quality - The S5 actually feels slightly lower quality than the body of the GH5, but that could be because it is lighter and smaller. Regardless, the quality feels way better than the R6. Sync/Desync Photo/Video Settings - It took me a long time to find, but it is possible to separate the photo and video settings and you even get to pick which ones stay synced with the other. When running and gunning you want shutter angle, VLOG, etc for video and shutter speed, Natural profile, etc for photos. You can set it so that they are completely separate, not all cameras let you do that and even the R6 did not let me pick which settings to keep in sync (i.e. keep just ISO the same between the two).  Dial Position - It is great to have the video mode and Manual photo mode side by side on the dial. The R6 had them at literally opposite ends of the dial....very annoying. Dedicated Buttons - There is a dedicated ISO button and a AF/MF switch on the lens. The R6 had neither. I use the AF / MF lens switch all the time, its the fastest way to be 100% certain all of the AF stuff is off, especially if you are switching between photos and video. Video Footage - The footage out of the camera so far to me in with my very limited testing is incredible, I didn't think Panasonic had it in them. The colors are perfect to my eyes, the codecs are super easy to play back in VLC and actually easier to edit in Davinci Resolve than the GH5's footage. Both 4K60FPS and 4K30FPS play smoothly even after color grading. So far the footage grades as easily as the R6 footage with the added benefits of not needing proxies. Codecs - You get to pick H.264 or H.265 and still get to shoot in VLOG and 4:2:2 10bit. For some crazy reason Canon with the R6 forces you to shoot in H.265 if you want to use CLOG. I will happily sacrifice a little storage space to never have to try to edit H.265 again. Manual Focus Features - I hated the focus rings on the Panasonic MFT lenses, they were non linear which made manual focusing nearly impossible. I ended up getting manual Voigtlander lenses instead. Panasonic has fixed that big time; not only can you now pick linear you can even pick how many degrees to go from stop to stop. I think the R6 let me pick linear but not the focus throw. I do miss Canon's 3 little triangles when manually focusing, to me that's still the best MF guide in the industry. On my S5, focus peaking doesn't seem to work; its on but I can't see it so I have to play with that some more. Timelapse Photography - Ok I had to throw this one in there. Maybe other cameras have this, but this is literally the first camera I have ever owned that lets you do a time lapse in body without an intervalometer AND that lets you take more than 99 images. That's always been a pet peeve of mine for most cameras.  Wireless Flash Control - Another pet peeve of mine answered by Panasonic, it can wirelessly control up to 4 flashes without needing an additional transmitter. Of course I'll never use this feature since I already have a complete flash system, but for someone starting out this means even less gear to lug around and to buy. Big Red Recording Box - Who hasn't thought they were recording when they weren't? I turned on the big red box right away (as soon as I found it). This is great, and will definitely help in the future. The R6 of course didn't have this. LVF Button - I didn't understand how important this was until I shot with the R6. It was so annoying in the R6 to have to  pick view finder or back screen display. If you picked view finder you had to go into the view finder and navigate back to the setting to change it back. If you picked auto, the screen kept shutting off on me when the camera got to close to my hand or body. Maybe you could map a custom button but I like leaving all of them at their defaults. For the S5 if you want to turn off the viewfinder sensor just press the LVF button...switch to just the VF press it again, switch to auto press it again. So easy to disable/enable one or the other. Auto mode is terrible, switches off the screen all the time if anything gets near the sensor. Here is my neutral list, either I don't really have an opinion yet either way, or I haven't tested the camera enough to feel good or bad about it.
Photography Capabilities - I'm still kind of neutral on the photography department. All I have is the kit lens and didn't have time to try the photography part. If it comes even close to the R6's photo performance that will be good enough for me.  My Sigma adapter gets here Friday so I will be able to test it with my Canon lenses. Auto Focus - I never used it in the GH5 but this time around it is different because I want to try the photography features as well. In my brief testing, the AF worked fine for photography. It still has the hybrid AF option where you half press the shutter button for the initial focus then can fine tune it using the focus ring so that's good enough for me for video. Menu System - It is improved a bit over the GH5 but still nowhere near as intuitive to me as Canon's menus. I think once I set up my Favorites menu it will be fine, but there's so many features I'm having a hard time finding some of them. I never did learn the GH5's menus, I just created a video Favorites list and that's all I use. My 5DIV is a different story.  
Final Thoughts - This camera makes me wish I was a travel photographer/videographer. It has so many uncompromised features that would be so useful when traveling that you could practically literally bring just this camera, a wireless flash, XLR module, a few lav mics, variable ND filters, a small video light, travel tripod, and shoot just about anything photo or video. I'm already thinking about projects that I want to shoot with this camera vs the R6 where all I could think about was if it would even make it through the shoot.

Canon may be pumping out cameras and lenses at an insane rate and will continue to do so. And Sony even more. And Nikon ups their game next week. And Fuji next year and...on and on and on it goes.
Simple bottom line is what do YOU need and what has anyone else got to offer that your current set up is not offering?
By the sounds of it, you are looking at the cost of an S5 vs the cost the of a C70, albeit switching the roles of your cameras around a bit.
Then let's say you get the C70 and S1H became your B cam, you'd tell yourself it would make more sense to swap the S1H for a Canon R6. And change all your glass.
What do you NEED?
Your needs will be different to mine as they will to the next person and so on, but for this kind of thing, I write a drop down list on the left side of the page in regards to my needs and then simply either put a check mark if I have that need covered or write in the potential options if I have not.
Then I ask myself are the potential options actual quantifiable and justifiable needs, or just wants?
Such as 4k 60p. Do you actually need it or is 1080 more than good enough? IBIS, need it or are you always on a tripod or gimbal because then it'e worthless. Autofocus. Need or not? 10 billion dot viewfinder when you only use the back of the screen? Sony A7Siii I am looking at you.
I don't care what anyone else is doing. My neighbour has a Ferrari. I have a Skoda estate. Good luck sleeping in your Ferrari overnight in the mountains ready for an early morning shoot because I have one of the back seats down, a platform, an air mattress, a 4 season sleeping bag, pillow, plugin coolbox, gas cooker, table, chair... but the Ferrari can do 0-60 in 3.2 seconds which is like 4k raw for an hour or something. Who gives a shit if you don't NEED it.
Actually my neighbour has an SUV but for demonstration purposes 😉

For me the biggest benefit is not having to synch audio in post, and my main setup is with a cage, the adapter, and a wireless lav receiver bolted to the cage. With that setup there are no wires. I've even had a client who wanted to walk and talk and I managed to get the adapter on the cage and everything balanced on the Ronin S while carrying an audio bag and keeping the receiver in the audio bag. Not very elegant but it worked.
I also have had the GH5 on a tripod and used the wired setup plenty of times. Last but not least I've used a wireless mic the adapter and the receiver to do some impromptu interviews at events. I do have a MixPre but that's for bigger events with multiple speakers. I'm not sure that the sound is any better than the Tascam, but I love the convenience. I literally just carry the adapter, a 20' cable, and a lav mic to every hybrid shoot even if there are no plans for audio in case the need arises, I didn't do that when I used a Tascam because it was one more thing to charge, worry about in the heat, etc.
 
For the AF...I really don't understand who is using AF that much in video, I've tried it on the C200 (turned it off immediately), tried it on the R6 (it got lost when filming a group of dancers), etc. I just don't trust it for video, no matter who makes it. I get it if something is moving fast towards you and you don't have a focus puller, but there's so many tricks to keep things in focus manually, and so many scenarios where MF is very easy that I personally don't get the AF concerns. There's a few times on a gimbal where I wish I had AF, but I feel like there's no guarantee AF would have been reliable anyway in those scenarios.
 
I have the Sigma 18-55 on my C200, it is too loud as well in AF....unusable with an on camera shotgun mic. Yet another reason I like MF. 
 
 
Awesome work, the quality is incredible. The opening scene alone blew me away....you can actually see through the open door and the interior at the same time, and that's not even using CLOG? My GH5 would have never done that. I'm not even sure about the C200. I can't imaging what this camera will do with even better lenses. Very nice camera work as well, if it would just stop raining here in FL, I'll be able to get out and shoot.

There is an R5/R6 user experience thread so I figured it was safe to start a Panasonic S5 user experience thread.  I've only shot with it for a few hours, mostly setting up (and learning) the menus and I know there are already endless YouTube reviews, but I thought I'd share my thoughts on my experience so far; completely unbiased, unsponsored and as someone who will use this camera for everything from music videos to weddings and if all goes well I might even use it for photo shoots.

Since there is so much that I like about this camera I've decided to just put my dislikes first because it is such a short list.
The Grip - This is my biggest dislike. holding the camera is so uncomfortable. The grip is really shallow and the strap mount sticks out and digs into your hand when you are holding it in a landscape configuration. Not so much a problem with video for me since I use the back display, but using the viewfinder for images is very uncomfortable. I'm going to try getting a dual battery grip to see if that improves it. The R6 by comparison feels like it was custom molded for my hands. The Lens Mount - I knew this going into it, but there are so few native Panasonic lenses for this camera that I will have to use an adapter which I hate doing. I know more lenses are coming but they are very expensive and everything I've read says the Sigma versions focus very slowly. I would love a Voigtlander fully manual 35mm lens for gimbal work like I have for the GH5. I have no idea yet what I will do for photography or if I will ever trust this camera for paid photo shoots. The Battery - I don't understand the battery at all. It fits the GH5 and has contacts for the GH5 yet for the S5 the contacts are on the other side? Why didn't they do what Canon did and simply make a higher capacity battery with the same contacts?  Not only are spare batteries impossible to find right now, this means all of my GH5 batteries won't work in this camera....so annoying. Ok, short list over now lets get to the stuff I care about that made me realize this was truly the camera for me. I first ordered the R6 and returned it (horrible user experience for my needs) so I am going to kind of compare my experience with the S5 to the R6 since they probably kind of are targeted to the same buyer and since it is hard to ignore the Canon hype machine even when you know about the R6's overheating issues. 
No Overheating - Ok we all know that but I had to put it out there anyway. This was the number one reason I returned the R6. The S5 on the other hand shoots glorious 4K until the card fills up (some limitations of course for 10 bit and 60FPS but it does have unlimited modes). Even if the R6 didn't overheat you would still hit that 30min limit and every single 4K mode overheated. Dual Slot Video Recording - The S5 gives me every option I could want and even a few I don't care about. The R6 will only record to a single slot. Electronic Level Meter - The S5 has it....of course, and it actually stays on while recording video. For some crazy reason the R6 disables the electronic level from showing on screen while recording video. XLR Audio Module - As annoyed as I am at Panasonic for the battery situation, the XLR module from the GH5 works with the S5 so all is almost forgiven. The R6 of course has nothing for XLR. I tested the module today, the S5 recognized it instantly and the audio was perfect. Free VLOG - Ok "Free" is a very generous term, but it does not cost extra. And this is real VLOG not some flavor that just flattens the profile, unlike the R6 which currently ships with CLOG. Canon said CLOG3 was coming in the future, but who knows if it will actually include the R6 or when "the future" really is. Body Quality - The S5 actually feels slightly lower quality than the body of the GH5, but that could be because it is lighter and smaller. Regardless, the quality feels way better than the R6. Sync/Desync Photo/Video Settings - It took me a long time to find, but it is possible to separate the photo and video settings and you even get to pick which ones stay synced with the other. When running and gunning you want shutter angle, VLOG, etc for video and shutter speed, Natural profile, etc for photos. You can set it so that they are completely separate, not all cameras let you do that and even the R6 did not let me pick which settings to keep in sync (i.e. keep just ISO the same between the two).  Dial Position - It is great to have the video mode and Manual photo mode side by side on the dial. The R6 had them at literally opposite ends of the dial....very annoying. Dedicated Buttons - There is a dedicated ISO button and a AF/MF switch on the lens. The R6 had neither. I use the AF / MF lens switch all the time, its the fastest way to be 100% certain all of the AF stuff is off, especially if you are switching between photos and video. Video Footage - The footage out of the camera so far to me in with my very limited testing is incredible, I didn't think Panasonic had it in them. The colors are perfect to my eyes, the codecs are super easy to play back in VLC and actually easier to edit in Davinci Resolve than the GH5's footage. Both 4K60FPS and 4K30FPS play smoothly even after color grading. So far the footage grades as easily as the R6 footage with the added benefits of not needing proxies. Codecs - You get to pick H.264 or H.265 and still get to shoot in VLOG and 4:2:2 10bit. For some crazy reason Canon with the R6 forces you to shoot in H.265 if you want to use CLOG. I will happily sacrifice a little storage space to never have to try to edit H.265 again. Manual Focus Features - I hated the focus rings on the Panasonic MFT lenses, they were non linear which made manual focusing nearly impossible. I ended up getting manual Voigtlander lenses instead. Panasonic has fixed that big time; not only can you now pick linear you can even pick how many degrees to go from stop to stop. I think the R6 let me pick linear but not the focus throw. I do miss Canon's 3 little triangles when manually focusing, to me that's still the best MF guide in the industry. On my S5, focus peaking doesn't seem to work; its on but I can't see it so I have to play with that some more. Timelapse Photography - Ok I had to throw this one in there. Maybe other cameras have this, but this is literally the first camera I have ever owned that lets you do a time lapse in body without an intervalometer AND that lets you take more than 99 images. That's always been a pet peeve of mine for most cameras.  Wireless Flash Control - Another pet peeve of mine answered by Panasonic, it can wirelessly control up to 4 flashes without needing an additional transmitter. Of course I'll never use this feature since I already have a complete flash system, but for someone starting out this means even less gear to lug around and to buy. Big Red Recording Box - Who hasn't thought they were recording when they weren't? I turned on the big red box right away (as soon as I found it). This is great, and will definitely help in the future. The R6 of course didn't have this. LVF Button - I didn't understand how important this was until I shot with the R6. It was so annoying in the R6 to have to  pick view finder or back screen display. If you picked view finder you had to go into the view finder and navigate back to the setting to change it back. If you picked auto, the screen kept shutting off on me when the camera got to close to my hand or body. Maybe you could map a custom button but I like leaving all of them at their defaults. For the S5 if you want to turn off the viewfinder sensor just press the LVF button...switch to just the VF press it again, switch to auto press it again. So easy to disable/enable one or the other. Auto mode is terrible, switches off the screen all the time if anything gets near the sensor. Here is my neutral list, either I don't really have an opinion yet either way, or I haven't tested the camera enough to feel good or bad about it.
Photography Capabilities - I'm still kind of neutral on the photography department. All I have is the kit lens and didn't have time to try the photography part. If it comes even close to the R6's photo performance that will be good enough for me.  My Sigma adapter gets here Friday so I will be able to test it with my Canon lenses. Auto Focus - I never used it in the GH5 but this time around it is different because I want to try the photography features as well. In my brief testing, the AF worked fine for photography. It still has the hybrid AF option where you half press the shutter button for the initial focus then can fine tune it using the focus ring so that's good enough for me for video. Menu System - It is improved a bit over the GH5 but still nowhere near as intuitive to me as Canon's menus. I think once I set up my Favorites menu it will be fine, but there's so many features I'm having a hard time finding some of them. I never did learn the GH5's menus, I just created a video Favorites list and that's all I use. My 5DIV is a different story.  
Final Thoughts - This camera makes me wish I was a travel photographer/videographer. It has so many uncompromised features that would be so useful when traveling that you could practically literally bring just this camera, a wireless flash, XLR module, a few lav mics, variable ND filters, a small video light, travel tripod, and shoot just about anything photo or video. I'm already thinking about projects that I want to shoot with this camera vs the R6 where all I could think about was if it would even make it through the shoot.

Well my initial thoughts will be slightly shorter than your much more detailed report @herein2020 but I will add more as time goes by.
First, why did I buy this camera, where was I coming from and intended use?
Long time Fuji XT3 user, hoped an XH2 would have been with us by now but no signs and though the XT4 would do the job for me, the lenses do not. Great images, both stills and video and though the bodies are very video capable, I feel the lenses are not, so it was time to change.
I have 4 basic requirements:
1: a personal/travel camera relatively compact that delivers very high quality results.
2: a camera that can do 50-100mp landscape photography.
3: a static video unit that can do 4k 60p for 30 minutes at a wedding and doesn’t have overheating problems.
4: a pair of hybrid units each with a prime, 4k 60p 10bit internal, IBIS.
The S5 for me definitely ticks 3 of those boxes and all 4 if I can live with the focus for video in the hybrid role at weddings. 
So far so good and though I initially had some buyers remorse, I have none now and love the thing.
I love the grip, but then I came from an XT3 so nuff said!
The AF has so far proved to be erratic but I already knew that and for 95% of my use, I can and will be using mf. I do have a need for AF though if only a few times on a shoot and that is a potential issue that I may avoid completely by getting and using a pair of Nikon Z6ii’s for my use need 4:
AF accuracy on a brief photo shoot scored 71/72 and the single oof was user error.
The quality of both stills and video is stunning. I am not big into grading and though I shoot raw for stills, prefer not to shoot log for video.
I shot all the video material on the natural profile yesterday for a promo video and SOOC it looks gorgeous. I have yet to edit it and tweak it, but I can already see it’s very good.
I had a couple of very minor issues yesterday but pretty much all due to lack of familiarity with the system and user error, but nothing that is going to be a problem that I can see so far.
Re. lenses, I only have one and that is the 20-60 which was surprisingly decent in lowish light and not too shabby with DOF. For the price, this lens is really good and though it does not replace a set of primes, especially for my hybrid wedding work, for my other 3 case needs, it’s perfect.
Summary, so far, 9.5/10 and it would be for me a genuine ‘perfect’ camera if it had PDAF.
OK, I wasn’t that short... 😉

There is an R5/R6 user experience thread so I figured it was safe to start a Panasonic S5 user experience thread.  I've only shot with it for a few hours, mostly setting up (and learning) the menus and I know there are already endless YouTube reviews, but I thought I'd share my thoughts on my experience so far; completely unbiased, unsponsored and as someone who will use this camera for everything from music videos to weddings and if all goes well I might even use it for photo shoots.

Since there is so much that I like about this camera I've decided to just put my dislikes first because it is such a short list.
The Grip - This is my biggest dislike. holding the camera is so uncomfortable. The grip is really shallow and the strap mount sticks out and digs into your hand when you are holding it in a landscape configuration. Not so much a problem with video for me since I use the back display, but using the viewfinder for images is very uncomfortable. I'm going to try getting a dual battery grip to see if that improves it. The R6 by comparison feels like it was custom molded for my hands. The Lens Mount - I knew this going into it, but there are so few native Panasonic lenses for this camera that I will have to use an adapter which I hate doing. I know more lenses are coming but they are very expensive and everything I've read says the Sigma versions focus very slowly. I would love a Voigtlander fully manual 35mm lens for gimbal work like I have for the GH5. I have no idea yet what I will do for photography or if I will ever trust this camera for paid photo shoots. The Battery - I don't understand the battery at all. It fits the GH5 and has contacts for the GH5 yet for the S5 the contacts are on the other side? Why didn't they do what Canon did and simply make a higher capacity battery with the same contacts?  Not only are spare batteries impossible to find right now, this means all of my GH5 batteries won't work in this camera....so annoying. Ok, short list over now lets get to the stuff I care about that made me realize this was truly the camera for me. I first ordered the R6 and returned it (horrible user experience for my needs) so I am going to kind of compare my experience with the S5 to the R6 since they probably kind of are targeted to the same buyer and since it is hard to ignore the Canon hype machine even when you know about the R6's overheating issues. 
No Overheating - Ok we all know that but I had to put it out there anyway. This was the number one reason I returned the R6. The S5 on the other hand shoots glorious 4K until the card fills up (some limitations of course for 10 bit and 60FPS but it does have unlimited modes). Even if the R6 didn't overheat you would still hit that 30min limit and every single 4K mode overheated. Dual Slot Video Recording - The S5 gives me every option I could want and even a few I don't care about. The R6 will only record to a single slot. Electronic Level Meter - The S5 has it....of course, and it actually stays on while recording video. For some crazy reason the R6 disables the electronic level from showing on screen while recording video. XLR Audio Module - As annoyed as I am at Panasonic for the battery situation, the XLR module from the GH5 works with the S5 so all is almost forgiven. The R6 of course has nothing for XLR. I tested the module today, the S5 recognized it instantly and the audio was perfect. Free VLOG - Ok "Free" is a very generous term, but it does not cost extra. And this is real VLOG not some flavor that just flattens the profile, unlike the R6 which currently ships with CLOG. Canon said CLOG3 was coming in the future, but who knows if it will actually include the R6 or when "the future" really is. Body Quality - The S5 actually feels slightly lower quality than the body of the GH5, but that could be because it is lighter and smaller. Regardless, the quality feels way better than the R6. Sync/Desync Photo/Video Settings - It took me a long time to find, but it is possible to separate the photo and video settings and you even get to pick which ones stay synced with the other. When running and gunning you want shutter angle, VLOG, etc for video and shutter speed, Natural profile, etc for photos. You can set it so that they are completely separate, not all cameras let you do that and even the R6 did not let me pick which settings to keep in sync (i.e. keep just ISO the same between the two).  Dial Position - It is great to have the video mode and Manual photo mode side by side on the dial. The R6 had them at literally opposite ends of the dial....very annoying. Dedicated Buttons - There is a dedicated ISO button and a AF/MF switch on the lens. The R6 had neither. I use the AF / MF lens switch all the time, its the fastest way to be 100% certain all of the AF stuff is off, especially if you are switching between photos and video. Video Footage - The footage out of the camera so far to me in with my very limited testing is incredible, I didn't think Panasonic had it in them. The colors are perfect to my eyes, the codecs are super easy to play back in VLC and actually easier to edit in Davinci Resolve than the GH5's footage. Both 4K60FPS and 4K30FPS play smoothly even after color grading. So far the footage grades as easily as the R6 footage with the added benefits of not needing proxies. Codecs - You get to pick H.264 or H.265 and still get to shoot in VLOG and 4:2:2 10bit. For some crazy reason Canon with the R6 forces you to shoot in H.265 if you want to use CLOG. I will happily sacrifice a little storage space to never have to try to edit H.265 again. Manual Focus Features - I hated the focus rings on the Panasonic MFT lenses, they were non linear which made manual focusing nearly impossible. I ended up getting manual Voigtlander lenses instead. Panasonic has fixed that big time; not only can you now pick linear you can even pick how many degrees to go from stop to stop. I think the R6 let me pick linear but not the focus throw. I do miss Canon's 3 little triangles when manually focusing, to me that's still the best MF guide in the industry. On my S5, focus peaking doesn't seem to work; its on but I can't see it so I have to play with that some more. Timelapse Photography - Ok I had to throw this one in there. Maybe other cameras have this, but this is literally the first camera I have ever owned that lets you do a time lapse in body without an intervalometer AND that lets you take more than 99 images. That's always been a pet peeve of mine for most cameras.  Wireless Flash Control - Another pet peeve of mine answered by Panasonic, it can wirelessly control up to 4 flashes without needing an additional transmitter. Of course I'll never use this feature since I already have a complete flash system, but for someone starting out this means even less gear to lug around and to buy. Big Red Recording Box - Who hasn't thought they were recording when they weren't? I turned on the big red box right away (as soon as I found it). This is great, and will definitely help in the future. The R6 of course didn't have this. LVF Button - I didn't understand how important this was until I shot with the R6. It was so annoying in the R6 to have to  pick view finder or back screen display. If you picked view finder you had to go into the view finder and navigate back to the setting to change it back. If you picked auto, the screen kept shutting off on me when the camera got to close to my hand or body. Maybe you could map a custom button but I like leaving all of them at their defaults. For the S5 if you want to turn off the viewfinder sensor just press the LVF button...switch to just the VF press it again, switch to auto press it again. So easy to disable/enable one or the other. Auto mode is terrible, switches off the screen all the time if anything gets near the sensor. Here is my neutral list, either I don't really have an opinion yet either way, or I haven't tested the camera enough to feel good or bad about it.
Photography Capabilities - I'm still kind of neutral on the photography department. All I have is the kit lens and didn't have time to try the photography part. If it comes even close to the R6's photo performance that will be good enough for me.  My Sigma adapter gets here Friday so I will be able to test it with my Canon lenses. Auto Focus - I never used it in the GH5 but this time around it is different because I want to try the photography features as well. In my brief testing, the AF worked fine for photography. It still has the hybrid AF option where you half press the shutter button for the initial focus then can fine tune it using the focus ring so that's good enough for me for video. Menu System - It is improved a bit over the GH5 but still nowhere near as intuitive to me as Canon's menus. I think once I set up my Favorites menu it will be fine, but there's so many features I'm having a hard time finding some of them. I never did learn the GH5's menus, I just created a video Favorites list and that's all I use. My 5DIV is a different story.  
Final Thoughts - This camera makes me wish I was a travel photographer/videographer. It has so many uncompromised features that would be so useful when traveling that you could practically literally bring just this camera, a wireless flash, XLR module, a few lav mics, variable ND filters, a small video light, travel tripod, and shoot just about anything photo or video. I'm already thinking about projects that I want to shoot with this camera vs the R6 where all I could think about was if it would even make it through the shoot.

I have the sennheiser g4's, they are great, I'm not an audio guy but I set them up once and  have never touched their settings since then. I put the batteries in them and go. 
 
Iv had them work through walls, over a hundred feet away, etc. Iv never had interference or had the audio drop.

There is an R5/R6 user experience thread so I figured it was safe to start a Panasonic S5 user experience thread.  I've only shot with it for a few hours, mostly setting up (and learning) the menus and I know there are already endless YouTube reviews, but I thought I'd share my thoughts on my experience so far; completely unbiased, unsponsored and as someone who will use this camera for everything from music videos to weddings and if all goes well I might even use it for photo shoots.

Since there is so much that I like about this camera I've decided to just put my dislikes first because it is such a short list.
The Grip - This is my biggest dislike. holding the camera is so uncomfortable. The grip is really shallow and the strap mount sticks out and digs into your hand when you are holding it in a landscape configuration. Not so much a problem with video for me since I use the back display, but using the viewfinder for images is very uncomfortable. I'm going to try getting a dual battery grip to see if that improves it. The R6 by comparison feels like it was custom molded for my hands. The Lens Mount - I knew this going into it, but there are so few native Panasonic lenses for this camera that I will have to use an adapter which I hate doing. I know more lenses are coming but they are very expensive and everything I've read says the Sigma versions focus very slowly. I would love a Voigtlander fully manual 35mm lens for gimbal work like I have for the GH5. I have no idea yet what I will do for photography or if I will ever trust this camera for paid photo shoots. The Battery - I don't understand the battery at all. It fits the GH5 and has contacts for the GH5 yet for the S5 the contacts are on the other side? Why didn't they do what Canon did and simply make a higher capacity battery with the same contacts?  Not only are spare batteries impossible to find right now, this means all of my GH5 batteries won't work in this camera....so annoying. Ok, short list over now lets get to the stuff I care about that made me realize this was truly the camera for me. I first ordered the R6 and returned it (horrible user experience for my needs) so I am going to kind of compare my experience with the S5 to the R6 since they probably kind of are targeted to the same buyer and since it is hard to ignore the Canon hype machine even when you know about the R6's overheating issues. 
No Overheating - Ok we all know that but I had to put it out there anyway. This was the number one reason I returned the R6. The S5 on the other hand shoots glorious 4K until the card fills up (some limitations of course for 10 bit and 60FPS but it does have unlimited modes). Even if the R6 didn't overheat you would still hit that 30min limit and every single 4K mode overheated. Dual Slot Video Recording - The S5 gives me every option I could want and even a few I don't care about. The R6 will only record to a single slot. Electronic Level Meter - The S5 has it....of course, and it actually stays on while recording video. For some crazy reason the R6 disables the electronic level from showing on screen while recording video. XLR Audio Module - As annoyed as I am at Panasonic for the battery situation, the XLR module from the GH5 works with the S5 so all is almost forgiven. The R6 of course has nothing for XLR. I tested the module today, the S5 recognized it instantly and the audio was perfect. Free VLOG - Ok "Free" is a very generous term, but it does not cost extra. And this is real VLOG not some flavor that just flattens the profile, unlike the R6 which currently ships with CLOG. Canon said CLOG3 was coming in the future, but who knows if it will actually include the R6 or when "the future" really is. Body Quality - The S5 actually feels slightly lower quality than the body of the GH5, but that could be because it is lighter and smaller. Regardless, the quality feels way better than the R6. Sync/Desync Photo/Video Settings - It took me a long time to find, but it is possible to separate the photo and video settings and you even get to pick which ones stay synced with the other. When running and gunning you want shutter angle, VLOG, etc for video and shutter speed, Natural profile, etc for photos. You can set it so that they are completely separate, not all cameras let you do that and even the R6 did not let me pick which settings to keep in sync (i.e. keep just ISO the same between the two).  Dial Position - It is great to have the video mode and Manual photo mode side by side on the dial. The R6 had them at literally opposite ends of the dial....very annoying. Dedicated Buttons - There is a dedicated ISO button and a AF/MF switch on the lens. The R6 had neither. I use the AF / MF lens switch all the time, its the fastest way to be 100% certain all of the AF stuff is off, especially if you are switching between photos and video. Video Footage - The footage out of the camera so far to me in with my very limited testing is incredible, I didn't think Panasonic had it in them. The colors are perfect to my eyes, the codecs are super easy to play back in VLC and actually easier to edit in Davinci Resolve than the GH5's footage. Both 4K60FPS and 4K30FPS play smoothly even after color grading. So far the footage grades as easily as the R6 footage with the added benefits of not needing proxies. Codecs - You get to pick H.264 or H.265 and still get to shoot in VLOG and 4:2:2 10bit. For some crazy reason Canon with the R6 forces you to shoot in H.265 if you want to use CLOG. I will happily sacrifice a little storage space to never have to try to edit H.265 again. Manual Focus Features - I hated the focus rings on the Panasonic MFT lenses, they were non linear which made manual focusing nearly impossible. I ended up getting manual Voigtlander lenses instead. Panasonic has fixed that big time; not only can you now pick linear you can even pick how many degrees to go from stop to stop. I think the R6 let me pick linear but not the focus throw. I do miss Canon's 3 little triangles when manually focusing, to me that's still the best MF guide in the industry. On my S5, focus peaking doesn't seem to work; its on but I can't see it so I have to play with that some more. Timelapse Photography - Ok I had to throw this one in there. Maybe other cameras have this, but this is literally the first camera I have ever owned that lets you do a time lapse in body without an intervalometer AND that lets you take more than 99 images. That's always been a pet peeve of mine for most cameras.  Wireless Flash Control - Another pet peeve of mine answered by Panasonic, it can wirelessly control up to 4 flashes without needing an additional transmitter. Of course I'll never use this feature since I already have a complete flash system, but for someone starting out this means even less gear to lug around and to buy. Big Red Recording Box - Who hasn't thought they were recording when they weren't? I turned on the big red box right away (as soon as I found it). This is great, and will definitely help in the future. The R6 of course didn't have this. LVF Button - I didn't understand how important this was until I shot with the R6. It was so annoying in the R6 to have to  pick view finder or back screen display. If you picked view finder you had to go into the view finder and navigate back to the setting to change it back. If you picked auto, the screen kept shutting off on me when the camera got to close to my hand or body. Maybe you could map a custom button but I like leaving all of them at their defaults. For the S5 if you want to turn off the viewfinder sensor just press the LVF button...switch to just the VF press it again, switch to auto press it again. So easy to disable/enable one or the other. Auto mode is terrible, switches off the screen all the time if anything gets near the sensor. Here is my neutral list, either I don't really have an opinion yet either way, or I haven't tested the camera enough to feel good or bad about it.
Photography Capabilities - I'm still kind of neutral on the photography department. All I have is the kit lens and didn't have time to try the photography part. If it comes even close to the R6's photo performance that will be good enough for me.  My Sigma adapter gets here Friday so I will be able to test it with my Canon lenses. Auto Focus - I never used it in the GH5 but this time around it is different because I want to try the photography features as well. In my brief testing, the AF worked fine for photography. It still has the hybrid AF option where you half press the shutter button for the initial focus then can fine tune it using the focus ring so that's good enough for me for video. Menu System - It is improved a bit over the GH5 but still nowhere near as intuitive to me as Canon's menus. I think once I set up my Favorites menu it will be fine, but there's so many features I'm having a hard time finding some of them. I never did learn the GH5's menus, I just created a video Favorites list and that's all I use. My 5DIV is a different story.  
Final Thoughts - This camera makes me wish I was a travel photographer/videographer. It has so many uncompromised features that would be so useful when traveling that you could practically literally bring just this camera, a wireless flash, XLR module, a few lav mics, variable ND filters, a small video light, travel tripod, and shoot just about anything photo or video. I'm already thinking about projects that I want to shoot with this camera vs the R6 where all I could think about was if it would even make it through the shoot.