herein2020

Welcome to the S5 family, the S5 IMO is definitely a big step up from the GH5 in terms of lowlight and even image quality. The dual native ISO alone puts it in a different class from the GH5. With my GH5 I was having to shoot with 0.95 lenses to try to overcome its lowlight shortcomings.
I personally never use a battery grip when shooting video, I like to be able to quickly go from handheld to gimbal, and battery grips don't play well with gimbals (makes the camera top heavy and harder to balance). Also, your cage options are typically much more limited with a battery grip attached.  What I found with the S5 was the Panasonic batteries lasted so long I rarely worried about battery life.
For long form event work I used a V-Mount battery and the USB-C port, this setup gave me about 8hrs of filming time. In between shooting stationary I set up my rig to be able to quickly grab the camera off the V-Mount rig and go handheld with the internal battery. You can check out my different rigging setups here. I will admit I finally moved on to the C70 because the lack of CAF with the S5 and EF lenses finally got to me, but it is still a fantastic camera with an incredible feature list. I still miss the S5's IBIS, aspect ratio guide lines, and level guide. Even the VLOG was a real joy to grade.

That's the thing, testing stuff in the real world and see how they work for you.
I am 4 events in to my season and have made a couple of changes based on the experience of those 4 events.
Not that I am unfamiliar with the kind of work I do, rather that the L Mount system I use combined with a very limited and sporadic number of events last year meant that I could not test anything as thoroughly as I would have preferred.
It's been full on now for the last 3 or so weeks with 10 actual days attended, so getting a good flow and feel now.
The S5 I have had in the 'B cam' role for a while. Since last year actually. That is, always on the tripod, longer duration stuff and also switched to 8 bit for that so I am not limited to 30 mins as I have been caught out a couple of times there and had to hit record again!
It's also my 'AF tracking camera' with native lens, but back in 10 bit 50p mode for the best chance.
With my S1H, my main filming camera that is always on me, I have treated it to a proper cine lens and Fotodiox ND adapter and have gone fully manual focus. 
I have mostly been shooting mf anyway, but my photo lenses not being ideal for video, found that it wasn't as great an experience as I'd like so might as well do it properly!
The S1H/cine lens/ND adapter will get it's first run out early next week with a 2 day job.
And last but not least, my S1R got an upgrade. Well, not so much an 'upgrade' as a lens upgrade plus a new sidekick companion.
I do quite like the kit 20-60mm, but it's just a bit meh for me so bought the Sigma 20mm f2 which is perfect for how I start any day/event which is with some local scenery, the venue exterior and interiors, some establishing room shots, plus it's great for late on after dark dancing and getting in amongst them.
The 'sidekick' is a used Leica TL2 armed with the now redundant (due to the cine lens) 35mm f2 and 65mm f2 Sigmas with the 35mm (50 ff equiv) doing candid duty and then using the 65mm (100 approx) doing the longer stuff my S1R with 28-70mm can't do.
That also gets it's first taste of action this weekend and I expect it to do well as it's an 'extra' not an 'instead of' so anything it brings is a bonus.
My DJI Action 2 however is getting far less well...action, than I hoped for but it's just too wide for my tastes really and just isn't adding much.
I'll still use it for some BTS but otherwise, nah, not my thing really.
Good to hear the S5 is working out for you. It's a decent piece of kit for sure.

So I'm late to the party, but I've had the S5 for a few days and I must say I'm genuinely impressed. It's a real joy to use. It kind of blows my mind that it's an entry level camera, because it's capabilities are impressive. 
First, I was wrong to write it off because of the recording limit in 10-bit and 60p. It'd have been nice to not have those limits, but the 8-bit is quite nice with good colors SOOC. I think it will be more than sufficient for my event work, though I'll know for sure after this weekend. 
Low light is very good, at least as someone coming from a GH5. Speaking of the GH5, I've been able to match the two pretty easily. I was worried that wouldn't be the case, but I think using the GH5 and my G85 will work out okay as b and c cams. 
I LOVE that I not only can use the XLR module but that I can lower the pre-amps more than the GH5. That was always something that has bugged me. 
There aren't a ton of 3rd party accessories. It came with 3 OEM batteries, but I bought some third party batteries from Newmowa. They work pretty good, though after using the OEM batteries and seeing how long they last I probably didn't need to get them. They work with the GH5 though, so they're not a waste. I wish there was a third party battery grip, and more options for cages. Mine came with a Small Rig cage, which is okay, but it doesn't feel as robust and protective as the GH5 cage I have. 
Overall I'm very pleased. I had no intention of getting it until I was offered a great deal on one. Now I'm contemplating picking up a second one and going with two S5s and one GH5 for my set up. That probably won't happen for a while, but in the span of a week I went from being pretty resistant to going with Panasonic for full frame to debating buying a second FF Panny camera. 🤦🏻‍♂️

I would still buy the one that I have now if I had to buy one tomorrow: the EVO II 6K. Yes the Nano is better in low-light, but where I live 10-20mph sustained winds are common and the smaller drones can't handle that kind of wind. I would rather a drone that I can fly back in the wind than one that is better at low light. I shot this video last year showcasing its abilities.
I left DJI due to its very invasive data collection practices and geofencing.
 
 
 

My vote is with @webrunner5 but for me a product can reach a point to where it is so undependable that it is actually unusable. Pulsing is impossible to get rid of in post and it was also impossible to predict ahead of time when it would happen so to me that's the definition of both unusable and undependable.
TBH IMO most AF is somewhat undependable, but the GH5's and S5's CAF were at the point to where for me they were so undependable that they did fall into the unusable category. My C70 on the other hand its AF is also somewhat undependable (just like every other CAF system that I've tried), but it is predictable enough for me to still consider it usable.

It's not unusable it's undependable, big difference. 

I would still buy the one that I have now if I had to buy one tomorrow: the EVO II 6K. Yes the Nano is better in low-light, but where I live 10-20mph sustained winds are common and the smaller drones can't handle that kind of wind. I would rather a drone that I can fly back in the wind than one that is better at low light. I shot this video last year showcasing its abilities.
I left DJI due to its very invasive data collection practices and geofencing.
 
 
 

I would still buy the one that I have now if I had to buy one tomorrow: the EVO II 6K. Yes the Nano is better in low-light, but where I live 10-20mph sustained winds are common and the smaller drones can't handle that kind of wind. I would rather a drone that I can fly back in the wind than one that is better at low light. I shot this video last year showcasing its abilities.
I left DJI due to its very invasive data collection practices and geofencing.
 
 
 

I can tell already this post will be long and probably ramble a bit so I will apologize in advance 🙂. For me, purchasing the C70 was a years in the making decision because I do not make new camera purchases lightly. My goal with a camera body purchase is that it fits with minimal additional investment into my existing camera ecosystem, it will perform its purpose for at least 5 years, and it will handle my specific type of projects.  Everything in this post is based on my own personal style of shooting, the types of projects that I get hired to do, and the gear that I already have. I am also posting this after owning the camera for less than 48hrs so my views may change over time.
After using the camera on a single shoot, I thought about how I would describe it in a single word.....and quirky keeps coming to mind. I'll get to more on that later, but in comparison to my current favorite camera, the Panasonic S5 I would describe the S5 in a single word as frustrating. The S5 is so close to being perfect, yet the AF finally pushed me back to Canon. Since I have called it (and continue to call it) quirky, let start there.
Here is my list of things that I just find strange about the camera:
The Mount - the mount is without a doubt the strangest mixture of FF, crop sensor, RF, and EF that I've ever encountered. I bought the 0.71 Canon speed booster so that I can use my EF lenses but with it mounted I cannot use my EF-S lenses. For EF-S lenses I also need to buy the straight through adapter. I have no RF lenses and probably won't have any for years so EF and EF-S is it for me. I would like for the speedbooster to live on the camera so I bolted it on because I like the extra stability, but that means I can't use the Sigma EF-S at all unless I want to either leave the speedbooster unbolted or or fiddle with removing it while on set.  Speedbooster - Yes, the speedbooster gives you a stop of light with EF glass, but the DOF remains the original DOF. Additionally, I saw some sample videos where the speedbooster decreases contrast and saturation in strongly backlit scenarios due to the extra glass elements, it also decreases the AF area for EF lenses. Not sure if this is also the case for EF-S lenses. It is great for providing a FF FOV, but it still falls into the quirky category for me. Storage - this one hit me before the camera ever arrived. I planned on buying 1TB SD cards due to the data rates but discovered that there is no such thing for V90 cards. In fact, the largest V90 cards I could find were 256GB which means now I have to worry about running out of space; something I haven't even thought about for years. Speaking of V90 cards, they are actually crazy expensive when compared to the typical V30 cards. So now I have a camera that can go up to Canon RAW yet no way to store the footage in the camera. I know I could use an external recorder, but I like the dual slot redundancy and the compactness of doing everything in body. Even V60 512GB SD cards are nowhere to be found. Such a strange problem to have in 2022. Lens IS + Digital IS - The C70 does not let you turn off lens IS and keep the digital IS on, no idea why but I discovered that during my brief testing. I wanted to test the difference in lens IS vs digital IS with the same lens but you can't have digital IS on and lens IS off. OK, so here for me is what I find is just bad about the camera so far. Once again, this is due to my own personal workflow and my shooting style, for bigger crews and different shooting environments this may or may not be something you care about at all.
Firmware Bug - Yep, within 20min of turning it on I found what I believe is a firmware bug and I currently have a Canon CPS case open for it. I shoot a lot of content that goes on both YT (16:9) and IG (4:5), so instead of shooting vertical which would mean it would only work on social media, I shoot landscape and display 4:5 aspect ratio guides on screen so that I know what would fit perfectly on IG. My customers love this, I deliver them two versions of the video and both fit perfectly on their respective platforms. I set this up on the S5 and I checked before buying the C70 that it had the capability to configure custom aspect guides as well. So while setting up the C70 I went into the aspect guide menu > custom > and started inputting my guide ratio. What I found out is that there is a bug and you can only change the left side of the guide. So I can set up 2:1, or 4:1 but there is no way to change the 1 on the right side. I called CPS and they couldn't figure it out either, so they opened a case for me. Fortunately, I have been using the guides with the S5 for so long that I kind of know from memory how to frame 4:5 within 16:9 but it is very annoying to say the least for this not to work.  Flip Screen Quality - This is a real thing, terrible quality, very flimsy and the worst physical part of the camera. I can only hope it does not break and if it does I hope it breaks when I don't have a job lined up and while it is still under warranty. I avoided flip screens for years because I thought they would be flimsy, my first camera with a flip screen was the GH5 and now in 2022 Canon found a way to confirm my worst fears about flimsy flip screens. By comparison the R6, S5, and GH5 all had great high quality flip screens. Stabilization - this is a big one and anyone who knows me knew this was coming and I know cinema cameras do not have IBIS, I knew the C70 did not have it before buying it, but it is still a downside in my book for this camera. It's one thing to not have it for cameras that are too big to hand hold, but when you market a cinema camera as being handheld and give it a DSLR form factor IBIS would be great.  I will say that I never knew how good lens stabilization was until I shot with the C70, if you have a stabilized lens and turn off the Digital IS it is almost as stable as IBIS. When it comes to digital IS, I simply do not trust it and feel like it makes the footage jittery so I only use if I don't have a stabilized lens on the camera. Speaking of stabilized lenses, I discovered my favorite video lens (Sigma ART F1.4 50mm) does not have lens IS which makes the S5's IBIS even more impressive in my book. I had no idea that none of the 50mm EF lenses offer stabilization and neither does most Canon EF lenses. So now I am stuck with no IBIS, and only the Canon 24-105mm F4 and the Canon 24mm F2.8 for stabilized lenses options. Horizon Level - Yes I know no Canon cinema camera has this (I think the C500 does but not sure), but it is still really annoying to have to keep checking the edges of my screen and guides to try to keep the camera level. It is easy when it is on a tripod and there's plenty around to line up with, but when you are hand holding it is one more thing to try to guess at. I use the horizon level religiously with every other camera. I would think this might be able to be added via firmware, I'm guessing it has a gyro since it provides digital stabilization but not certain of this. Flip Screen Visibility - The flip screen looks great indoors but completely disappears outdoors, no possible way to see much more than an outline of what you are shooting even with a monitoring LUT enabled. This means an external monitor is almost required and for gimbal work you pretty much just have to hope you are pointed in the right direction. Indoors it is great. The Fan - I know, I know, it is required to keep it cool...but I live in FL (where everything overheats so the fan is even more important lol), but living in FL I also shoot a lot on beaches with the wind blowing and sand going everywhere. That fan is my worst nightmare in that scenario. I really don't know yet what I am going to do for those shoots, I may just use the S5 whenever a dusty or sandy environment like that is required.  The Joystick - the joystick is nearly impossible to use. You can navigate left/right/up/down ok, but if you try to press it to select a menu item it typically jumps to a different screen, very hard to precisely press it. I started using the Set button in the thumbwheel instead to select menu options. It is not all bad, and I will say up front that I do not regret my purchase (not yet), so for me (so far) the good outweighs the bad:
Internal ND Filters - those glorious internal ND filters make me smile every time I press the button. I almost like them more than I like the sensor and image quality. Being able to dial in an exposure with the press of a few buttons is nothing short of awesome. Gimbal Balancing - I watched a ton of YT videos and bought counterweights and a clamp for my Ronin S because I didn't think it would balance otherwise. Well, it turns out that with my gimbal lens (Canon EF 24mm F2.8) it balances with no problems. The arms are at their outer limits, but it does balance properly. I was able to balance the Sigma EF 50mm as well but not properly and the motors had to engage just to keep the horizon level...not a good situation. Sensor - This one is a given, all of the spec charts and YT videos in the world can't compare to just shooting with the camera with your style of shooting. The sensor is more than sufficient for everything I need do and I tested right away a model backlit by direct sunlight and the image was good enough for me. It did wash out a bit but it wasn't as bad as I thought it would be. CODEC - Yesterday I shot mostly 30FPS and 60FPS and the XF-AVC codec was actually easier to edit than the H.265 footage coming out of my S5. I wasn't sure if I was going to be able to edit it and Davinci Resolve along with my editing setup handles it with no problem. Ironically the hardest footage to edit on my system is GoPro footage. Ecosystem - This one is important to me and since I have a lot of Canon glass and XLR audio equipment it was important that it fit into my existing ecosystem. I picked up a shotgun mini XLR mic for on camera work, a cage, a DTAP to C70 power cable, the speedbooster, v90 cards, and that was it. It fit perfectly into the rest of my gear.  Integrated XLR Audio - Obviously this is great to have, no more finicky adapters to deal with. The mini-XLR jack isn't that big of a deal to me, my new on camera mic is mini-XLR, and I bought adapter cables for the rest of my equipment.  Build Quality - I was actually expecting worse build quality than it has after seeing so many people complain about it. It's not great, it definitely is not as nice as my S5, GH5, C200, or 5DIV, but for what you get I think its not bad. The buttons feel a bit cheap when you press them but as long as they work I don't really care. Auto-Focus - having AF is just wonderful....ANY AF is better than NONE, and this will be the first video camera I have owned that I can somewhat handhold and have AF at the same time. I know everyone is saying it is not that good, but to me it is great. I just set it to large area AF and kept the box on the subject and it did the rest. I already know in lowlight it won't work well or with certain skin tones but the focus peaking is so good that I am actually looking forward to MF for those situations. Exposure Tools - Obviously there are a ton of them, I thought I had my setup all figured out but during the shoot I ended up just using the WFM because it was the only thing I could see in the sunlight and it worked well. Battery Life - The battery life is decent, 1.5hrs shows on the meter when I first turn on the camera. With the DTAP to C70 cable I can connect the camera to my VMOUNT battery which can probably power it for at least 4hrs. OTHER CAMERAS
   Before buying the C70, I did a lot of research and comparisons to other cameras that I felt could meet my needs, the list below is arranged from closest to furthest for how close they came to what I was looking for:
Canon R5C - This was the number 1 contender, but for me there were too many compromises. No internal ND filters, adapter required for XLR audio (the adapter BTW that even further shortened the already terrible battery life), the weird USB PD power requirements, the terrible battery life, and no IBIS ruined this one for me. If it had IBIS or an eND filter system I probably would have picked it over the C70. Canon R3 - Interesting camera but no ND filters, would need the adapter for XLR audio (adding to the price), no video exposure tools, no good codecs, and cost a ton of money for that fast readout sensor that I would never need since I don't shoot sports.  Canon R5 - No XLR inputs, no ND filters, no video tools, terrible codecs, and that horrible overheating issue that just won't go away after all the firmware updates eliminated this one from my list. Panasonic - All of their cameras have no useable AF, so as much as I love my S5 in every other way, there's no way I am buying another one unless their AF system changes. Sony - that's a whole different world for me and different ecosystem which doesn't interest me at all. Nikon - looked interesting but I know nothing about Nikon and feel like they are one foot from the grave (kind of like Panasonic for that matter). I am sure they make good cameras but I don't feel like learning their ecosystem, also I would have been paying for that sensor and XLR adapter similar to the R3. FIRST SHOOT EXPERIENCE
    My first shoot was almost comically bad. I got the camera late on Friday, went through all of the menus and watched YouTube C70 setup videos until 3AM, then got up and did my first paying shoot with it at 10AM. Also, the cage did not come on time so I really felt out of place hand holding it without a cage or side handles and nowhere to mount a top handle or mic.
     I thought I had figured everything out....I was going to use the Zebras at 45% to expose the skin tones, use digital IS for the 50mm, and use only lens IS with the 24-105mm.  I set up my favorites menu with AF mode, Zebras on/off, and framerate. I also balanced it on the Ronin S with the 24mm F2.8. As soon as the shoot started I realized the zebras were impossible to see in the sunlight, I forgot to turn on digital IS when switching to the 50mm, and without the zebras I had no idea if I was exposing properly. So I switched to the WFM, gave up on the skin tones, and kept it in the middle of the WFM. 
    After the shoot I checked out the handheld and gimbal footage and it wasn't as bad as I thought. I ended up throwing away much less shaky footage than a typical S5 shoot where I have to throw away out of focus footage.  The subject for this shoot moved around quite a bit and my S5 keeper footage rate would have been way lower.
     I also ended up buying the Buttery C70 LUT pack to get the initial grade. Sound It Out Films did a great YT review on LUTS and the Buttery one looked like it had the best starting point for the Rec.709 grade. I do not like their creative LUTS though because they added them into the Rec.709 grade vs separating them so you can't use them for all of your footage from different cameras from a shoot. But their Rec.709 primary grade is the best looking to me.
LEARNING EXPERIENCE
   I still really need to learn how to properly expose CLOG2 with the C70. I think I did OK on my first shoot, my false color LUT shows me that for the most part I was able to get the exposure where it needed to be, but I definitely need more experience with CLOG2. The totally confusing area for me is the AF, I watched tons of YT videos but the whole area AF with subject tracking turned on confuses me. When whole area AF is on and subject tracking is on, boxes are flying all over the screen, it seems to be tracking things even though I did not tap the screen so I am not sure if it is just showing me what it decides should be in focus or if it is actively tracking something. I also don't really understand the logic behind whole area AF, how it works and when it breaks so I need to test that feature a lot more.
WRAP-UP
   For my needs the C70 is a great "quirky" camera that I think was worth it. I hope to get at least 5yrs of use out of it, but TBH with you my main concern now is how to get V90 cards big enough to store long form content. I don't see 256GB cards lasting through an 8hr day. I may actually test V30 cards at its lowest bitrate settings or even 2K @ 30FPS for long form talking head content. An annoying problem to have in 2022 and out of all of my problems with this camera, that's one I never saw coming. So far it definitely seems like it was worth it, but time will tell. I still don't think it can replace my S5, when I need to travel light, work in dusty environments, or I'm on a shoot with a budget that just isn't high enough to bring the C70, I will probably still use the S5.

I think the way the S1 crops in explains why there is more noise.....the photosite to resolution ratio does change in the scenario you described. In FF mode it is using an oversampled 6K image and the full sensor to produce a 4K image so there are 6K worth of photosites being used to produce the smaller image which means the noise will be less than when you crop in where you are using less of the sensor but still creating a 4K image. In that scenario yes, I can definitely see where noise would increase. I wouldn't be surprised if the oversampling is turned off completely and only the S35 (8MP) worth of photosites is used.
On the C70 it would be a different story because the photosite to resolution ration stays the same; in S35 mode the full 8MP sensor is being used and a 4K image is produced; in S16 mode the crop exactly matches 2K so a 2K image is produced. Now if the S16 mode let you record in 4K that's where the noise would increase because now the photosite to resolution ratio changed. 
Of course I could be completely wrong and the noise could still increase noticeably in the C70 in crop mode, but on paper at least it seems like it should remain constant when looking at the fact the photosite to resolution ratio does not change.
The following video was a pretty interesting test of the S1 from a crop mode to noise relationship.
 
 
That is a pretty fascinating analysis. Of course I was already aware of how important getting the exposure as perfect as possible in camera is, but their explanation of other sources of noise and the randomness of light itself definitely sheds more light on the issue.
 
Maybe the oversampling process itself adds noise to the image. I think it all goes full circle...the only real way to know if the C70 specifically has more noise in S16 mode is to test it. At the moment I still think it is a 50:50 chance. Another question is....is there any camera out there that doesn't have increased noise in crop mode?

I guess I just don't understand why that would be. If you are using the same number of photosites on the sensor for a given resolution how could there be more noise since you are not increasing the gain when cropping in? It would make more sense to me if say the native ISO increased when switching to the S16 mode, but without an increase in gain how is there an increase in noise? Maybe the S1 line skips when in cropped mode or some maybe some kind of upscaling is occurring which decreases the image quality or maybe its circuits are just more noisy when handling the crop mode.
But with the C70 in cropped mode and RAW there is no line skipping or upscaling, it is just using a smaller region of the sensor and the native ISO does not change. It would be very interesting to see someone perform a noise test for the C70 in the cropped vs S35 mode. 

 
That is true, I do need to do more testing, my favorite test is a waterfall where nearly every pixel changes from one frame to the next.  I don't have the patience to do the whole computer monitor stills thing 🙂 I am not a very good tester in general, I'd much rather be out shooting than testing. I work through the basics then get out there and shoot.
 
For the work that I do, what comes out of the C70 is good enough for me. I agree though, the back screen always looks perfect and I have yet to find a LUT that can reproduce that look in post. There is a great YT video that I posted earlier in the thread where he went through many of the available LUTs and showed the results. I ended up going with the Buttery LUT for my Rec709 workflow, it looks the most natural to me and gets me the closest to where I want to be.

I guess I just don't understand why that would be. If you are using the same number of photosites on the sensor for a given resolution how could there be more noise since you are not increasing the gain when cropping in? It would make more sense to me if say the native ISO increased when switching to the S16 mode, but without an increase in gain how is there an increase in noise? Maybe the S1 line skips when in cropped mode or some maybe some kind of upscaling is occurring which decreases the image quality or maybe its circuits are just more noisy when handling the crop mode.
But with the C70 in cropped mode and RAW there is no line skipping or upscaling, it is just using a smaller region of the sensor and the native ISO does not change. It would be very interesting to see someone perform a noise test for the C70 in the cropped vs S35 mode. 

 
That is true, I do need to do more testing, my favorite test is a waterfall where nearly every pixel changes from one frame to the next.  I don't have the patience to do the whole computer monitor stills thing 🙂 I am not a very good tester in general, I'd much rather be out shooting than testing. I work through the basics then get out there and shoot.
 
For the work that I do, what comes out of the C70 is good enough for me. I agree though, the back screen always looks perfect and I have yet to find a LUT that can reproduce that look in post. There is a great YT video that I posted earlier in the thread where he went through many of the available LUTs and showed the results. I ended up going with the Buttery LUT for my Rec709 workflow, it looks the most natural to me and gets me the closest to where I want to be.

C70's raw file size is much more manageable than c200/c300's 1gbps monster and that's only 10bit in 4k50/60p vs 12bit on c70.
 
The 2k raw is even usable in wedding too lol (for ceremony, not sure about reception cause of lowlight on s16 crop).
 
This raw update really makes c70 attractive! No need bulky external monitor + battery if you want compact raw cinema camera.
 

I tested out the new C70 firmware today and shot in Cinema RAW LT at 30FPS. On a whim, I directed the RAW footage to record to my V30 card and it actually recorded fine.
I just shot a few seconds of footage to test out playback on my editing system and to see if my SD cards could handle it. I definitely think my 1TB SandDisk Extreme Pro cards are rock solid, it was almost comical seeing 411 min of recording time available when recording to the 1TB card in RAW LT. 
When I tested RAW LT at 60FPS though it buffer overflowed immediately. So my storage concerns were definitely unwarranted; this camera, despite its faults is really turning into a rock solid workhorse for me. Below is a quick table that I put together to show the codecs that I care about and their recording times.
 
SanDisk Extreme Pro 1TB V30 Canon RAW LT -> 29.97FPS -> Recording Time 422min Canon XF-AVC Long GOP -> 29.97FPS -> Recording Time 852min Canon XF-AVC Long GOP -> 59.97FPS -> Recording Time 524min ProGrade 256GB V90 Canon RAW ST -> 29.97FPS -> 68min Canon RAW LT -> 29.97FPS -> Recording Time 105min Canon RAW LT -> 59.97FPS -> Recording Time 52min Canon XF-AVC Long GOP -> 29.97FPS -> Recording Time 213min Canon XF-AVC Long GOP -> 59.97FPS -> Recording Time 131min Also, the Canon RAW LT at 29.97FPS seems to have a bitrate of 322Mb/s which is a data rate of 40MB/s, which is only half the 80MB/s that my SanDisk V30 card registered during its tests so I should be pretty safe with it. I will definitely keep the ProGrade cards in my bag, but it looks like for 90% of my work I am fine with keeping two 1TB SanDisk Pro cards in the camera with it set to dual slot recording.
If I shoot a project that requires raw footage I will probably just use two ProGrade cards, not worth the headache of trying to remember which footage gets recorded to where depending on framerate.

I tested out the new C70 firmware today and shot in Cinema RAW LT at 30FPS. On a whim, I directed the RAW footage to record to my V30 card and it actually recorded fine.
I just shot a few seconds of footage to test out playback on my editing system and to see if my SD cards could handle it. I definitely think my 1TB SandDisk Extreme Pro cards are rock solid, it was almost comical seeing 411 min of recording time available when recording to the 1TB card in RAW LT. 
When I tested RAW LT at 60FPS though it buffer overflowed immediately. So my storage concerns were definitely unwarranted; this camera, despite its faults is really turning into a rock solid workhorse for me. Below is a quick table that I put together to show the codecs that I care about and their recording times.
 
SanDisk Extreme Pro 1TB V30 Canon RAW LT -> 29.97FPS -> Recording Time 422min Canon XF-AVC Long GOP -> 29.97FPS -> Recording Time 852min Canon XF-AVC Long GOP -> 59.97FPS -> Recording Time 524min ProGrade 256GB V90 Canon RAW ST -> 29.97FPS -> 68min Canon RAW LT -> 29.97FPS -> Recording Time 105min Canon RAW LT -> 59.97FPS -> Recording Time 52min Canon XF-AVC Long GOP -> 29.97FPS -> Recording Time 213min Canon XF-AVC Long GOP -> 59.97FPS -> Recording Time 131min Also, the Canon RAW LT at 29.97FPS seems to have a bitrate of 322Mb/s which is a data rate of 40MB/s, which is only half the 80MB/s that my SanDisk V30 card registered during its tests so I should be pretty safe with it. I will definitely keep the ProGrade cards in my bag, but it looks like for 90% of my work I am fine with keeping two 1TB SanDisk Pro cards in the camera with it set to dual slot recording.
If I shoot a project that requires raw footage I will probably just use two ProGrade cards, not worth the headache of trying to remember which footage gets recorded to where depending on framerate.

That does sound like the best combination. I never use IBIS for walking, anything that needs more than simple hand holding and I put the camera on a gimbal, tripod, or monopod.

I personally upgraded to the S5, you can read about my S5 User Experience here. But in the end the AF was finally its downfall for me. I have a large collection of Canon EF lenses and CAF is not an option when using the EF adapter; buying L mount lenses was not an option to me due to their cost and the fact no other mainstream camera system uses them (ignoring Sigma and Leica here).
The one time I tried to shoot a project with one of the native lenses I got for free (the Sigma 45mm), the performance was absolutely terrible; pulsing, missed focus, etc. completely unusable.
I, like you, absolutely depended on IBIS, to me it was a lifesaver since I shoot 90% handheld, with that being said I never try to walk without a gimbal, all of my handheld work was using only body movement or completely stationary. Due to shooting handheld, I skipped the GH5S, the C70, and eliminated the R5C as possible upgrade options. 
This year I absolutely had to do something about the AF, so I took the plunge and picked up the C70. So far it has been absolutely incredible; those internal ND filters, DPAF, and CLOG2 are truly game changing for me. You can read about my C70 User Experience here. I still shoot 90% handheld but I have discovered with Lens IS and some post stabilization in DR is almost as good if not as good as IBIS.  I also outfitted the C70 with a cage and handles, and worked on my handheld technique a bit more. The C70 is also heavier which further helps with stability.  Even with all of that, it is still more difficult to get IBIS like stability but it is possible.
For your scenario where you are shooting weddings, a lot of wedding footage is slowed down in post anyway so that would add even more stability to your shots. I am shooting and delivering in real time and it still looks as stable as IBIS shots when I use proper technique. I will admit it is also kind of nice not having to worry about IBIS wobble with wide angle lenses.

Ok fair enough. You said you found it "strange" which to me means "out of the ordinary" but I understand what you mean. It is quirky especially if you use a light meter like I still do.

No it really seems like you just didn't understand my post at all....I never said that it was a problem, nor did I say I was expecting something different, if you reread my post all I did was mention that to me, mounting a 50mm lens on a camera and cranking it wide open to F1.0 but getting a F1.4 focal plane is what I consider "quirky" aka not typical.....in other words using a speedbooster in general is not something that I am used to but it is what is needed on the C70 if you want a FF FOV....that literally was all that statement meant.
 

You are probably right, the differences in CLOG2 vs 3 on this camera are probably so negligible that it would be easier to just stick with CLOG2 even if on paper CLOG3 would technically be the better choice. My whole workflow is around CLOG2 so I probably will just use it for everything.
 
 
I only have a single APS-C lens that would use it, and I would have to unbolt the speedbooster so I will probably skip it for now. If I do end up replacing my 5DIV with an R5 or R3 then I would pick up the straight through adapter.

With the S5 I typically exposed a bit to the right and to me anytime to have to do that it is a bit of a guessing game, with the C70 you just property expose so to me that is easier especially when you have time to check the false color.

Congrats, I am sure you will love it. Mine is great so far.
That sounds about right....not enough difference to notice in real world shooting.
I was aware of the 4K120p limitation, funny how I always thought 120FPS would be nice to have but now that I have it I doubt that I will use it much if at all.
I still think the S5 might be better in low light due to the FF sensor and dual native ISO, that 4000ISO was incredibly useful; I haven't had a low light shoot yet so that's the last thing I need to test.
I do think that the C70 and CLOG2 is easier to grade right out of camera and easier to expose than VLOG. I just set the exposure for the WFM so that the highlights touch 80 for outdoors shoots. If the sun is in the frame I let that peak hit 100. 
The video was shot at 60fps and output at 30fps. I don't like the motion blur from 24fps so I never use that frame rate.

In other news - I just purchased a C70, which I will be collecting on Monday 😍.

Here is my first model promo video shot with the C70. @Django the DR really shows with the backlit direct sunlight shots, I did not use anything but daylight for this video. As far as stability, @kye about 80% of the video was shot handheld and I did not use any in camera digital stabilization. 
I still am not 100% convinced the C70 has more DR than the S5, if anything I would say they are even, but the AF is so good even is good enough for me.  The touch to track is a cool feature but too unreliable IMO, I don't have anything to compare it to (since I don't own the R5 or R6), but it definitely seems like it is easy to lose the tracking at which point the camera becomes unpredictable especially since I only get the center 60% of the coverage area with the speed booster attached. 
Overall, I am really glad I skipped the R5 and the R5C, those internal ND filters make all the difference here. Many times with the S5 I would just stop it down because there just wasn't time to pull out the variable ND. 
The C70 combined with the DJI Ronin RS2 is an awesome combination. The RS2 is so much lighter than the DJI Ronin S that the C70 on the RS2 feels like the same weight as the S5 on the Ronin S. I am able to keep my full Shape cage on the C70 and balance it without needing counter weights even with the Canon 24mm-105mm L lens, however I did need the Smallrig extending base because the C70 was too wide for the DJI base and the Smallrig Manfrotto base plate since the one that comes with the Ronin RS2 is pretty much useless.
The 1TB V30 Sandisk Extreme PRO card is working out great as well, no problems so far, I just keep the V90 card in slot 2 for just in case.
 
 

Here is my first model promo video shot with the C70. @Django the DR really shows with the backlit direct sunlight shots, I did not use anything but daylight for this video. As far as stability, @kye about 80% of the video was shot handheld and I did not use any in camera digital stabilization. 
I still am not 100% convinced the C70 has more DR than the S5, if anything I would say they are even, but the AF is so good even is good enough for me.  The touch to track is a cool feature but too unreliable IMO, I don't have anything to compare it to (since I don't own the R5 or R6), but it definitely seems like it is easy to lose the tracking at which point the camera becomes unpredictable especially since I only get the center 60% of the coverage area with the speed booster attached. 
Overall, I am really glad I skipped the R5 and the R5C, those internal ND filters make all the difference here. Many times with the S5 I would just stop it down because there just wasn't time to pull out the variable ND. 
The C70 combined with the DJI Ronin RS2 is an awesome combination. The RS2 is so much lighter than the DJI Ronin S that the C70 on the RS2 feels like the same weight as the S5 on the Ronin S. I am able to keep my full Shape cage on the C70 and balance it without needing counter weights even with the Canon 24mm-105mm L lens, however I did need the Smallrig extending base because the C70 was too wide for the DJI base and the Smallrig Manfrotto base plate since the one that comes with the Ronin RS2 is pretty much useless.
The 1TB V30 Sandisk Extreme PRO card is working out great as well, no problems so far, I just keep the V90 card in slot 2 for just in case.