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  1. Guest

    GH4 12fps RAW video.

    I've been playing with the GH4 today in RAW stills burst mode. My workflow needs some refinement to get the motion blur looking more regular, but I actually quite like the filmic staccato of 12fps. The image quality is insanely nice though: Note: Plus members can download the original Prores LT file on Vimeo. I REALLY RECOMMEND DOING THIS - motion looks much worse when streamed. Vimeo blurb below: First test of using GH4 in RAW stills burst mode to make video. RAW stills converted to ProRes 444HQ and slowed to 50% in 24p FCPX timeline. Graded in FCPX and some grain applied. Also used REVisionEffects' RSMB to add motion blur as most of this was shot with a very high shutter speed. This has caused some unpleasant motion artefacts here and there. The final shot in the video (of blowing leaves and cars) used a 180 degree shutter in-camera (1/25s) and looks better I think. I will try using that setting for my next attempt. Rolling shutter looks quite severe. The GH4 buffer can only do about 40 frames in raw burst mode, so you can't really get longer than a 3 second clip. My card is a Sandisk 95MB/s U1 - I don't know if a faster card would do better. I actually really like the 12fps look, particularly when used with film grain and the really bold colours you can get from raw. I like the excessive motion blur. I think if you avoid severe camera movement so as not to draw attention to the rolling shutter and low frame rate, it can look very filmic. Obviously this can't be used for everything but with some refinement I think I will be using it a fair bit. If you like the 12fps look (12fps is right on the border of human perception of individual frames - I think this makes it rather interesting) and can live with the short burst times, there are a lot of good reasons to try this out. Yet another great thing about the awesome GH4. Check our blog for further testing of this mode: lintelfilms.co.uk/blog/ Note: I tried using 'optical flow' (FCPX's version of Twixtor) to create 'real' 24fps, but it was a mess, with lots of the usual warping around movement (even though I used a very fast shutter speed). Music by Chris Zabriskie.
  2. Why not use maximum GH4 in-camera noise reduction setting if shooting 4K for 1080 output? I know Neat Video will do a better job in post, but it's a real time and processor hog. Also, I haven't seen any evidence that Neat cleans up 'pure' noisy footage better than the mushy noise you get with NR on. Softness was the reason I didn't use both on previous (1080) cameras, but I'm actually actively looking for ways of softening the image from the GH4. I'll do some tests and post them if I have time ...
  3. Testing out lenses with the Iscorama 36 wide open. I really want that separation from the background. It's easy now with the Metabones Speedbooster EF. There is something to be said about full frame lenses used with the Speedbooster vs micro 4/3rds native lenses. Also the Iscorama is the sharpest of the anamorphic adapters, although there are still some lenses that don't do well wide open. Shot on a GH4 4K (before v2.0 firmware, 16:9). Iscorama minimum distance is around 6 feet, half that with the Tokina +0.4 diopter.
  4. Hi guys, I've been a lurker in the forums for quite some time now, but this is my initial post. I received my GH4 yesterday and have been playing with different setups. This is the best so far. Regular shoulder-rig with cage. A Røde shotgun mic with pistol grip attached to a super clamp which is attached to the cage. Sounds like a bad idea, but works wonderfully, and are easy to detach. There is no wiggle or instability. The Røde is connected to the Zoom H4N which is connected to the Panasonic. I've had great results so far with my testing and its hard to tell the difference between the GH4 Audio and the H4N recording. You can of course record audio with the recorder and have great referance audio in the GH4. Works really good when you don't have a designated audio-guy. // Johannes
  5. This is something I haven't seen a lot of people talk about, especially in a video/film context. What happens to low light performance when you need DOF that isn't quite so shallow? I'm thinking GH4 vs A7S here but feel free to chime in with whatever experiences you've had. Take the A7S at f/2.8 and ISO 1600. Wonderfully clean image, substantially cleaner than a GH4 at f/2.8 and 1600. But that GH4 is delivering way more DOF thanks to the small chip. So if we equivalence up the shots a bit, our A7S is now at f/5.6 and ISO 6400. Can it still compete with the GH4 on image quality when we're applying a two stop penalty to compensate for depth of field requirements?
  6. I'm not talking about 4K downscaled - just native 1080. Obviously the GH4 has higher bitrates and ALL-I, but I could swear the stuff I'm seeing from the GX7 has less moire and/or aliasing than GH4HD, and is possibly a tad sharper too? I can't find any direct comparisons online. Does anyone have any experience or an opinion on this?
  7. Zoom Angenieux 15-150 C-mount T3.1 f2.8 on UHD GH4, no crop Zoom Angenieux 15-150 "type 10 x 15b" C-mount T3.1 f2.8, always used wide open on this movie Shot on GH4 24p UHD 3840x2160 200 ASA Run and gun style No crop Cinelike D mode -2 -5 -5 -5 0 Edited on Adobe Premiere CC, with Lumetri Cinematic 2 color effect
  8. I recently shot a music video with the GH4(in 4k) and GH2(1080) all the footage looks really good in preview playback but I notice a Gamma change with the .mov GH4 files if I open in FCP or VLC? I've had this problem with RED files and I just continued editing with the darkened gamma change because the files seem to correct themselves upon export. With that said I have a couple questions with how I should continue with this project or if there is a better way. My workflow plan right now is to Transcode first all of AVCHD GH2 files with 5dToRGB to PRORES 422HQ After that I'll import the PRORES files into FCP and drag a clip to the timeline and match the sequence settings to the clip because the final deliverable will be in 1080. My question is with the 4k footage and if this workflow makes sense? Should I import the .mov files directly into the 1080 sequence? or should I transcode the .mov files to 4K PRORES? I know importing the .mov files will slow me down because I'll have to constantly render but I don't want to lose image quality in conversion. My concern is the gamma will change and I wont know the true image quality until after I export. I just want to keep the images looking like they are. What would be some of your workflows when working with the same type media?
  9. Hi, I apologize if this has been answered somewhere before, but I have looked around a feew forums and come up short. Basically I want to use a european GH4 to record live events (>30min) with an external recorder. I am therefore wondering if it is possible to get long continous output from the GH4's HDMI out in standby?
  10. Hey - Recently just bought the GH4 and was looking at some Rokinon and SLR Magic lenses. I was wondering if I should get them MFT mount or purchase a speed booster and get the EF mount? I am assuming the crop factor will decrease if I get the EF and speed booster but the fact that I won't have to use a adapter with the MFT is great. Just want to get some thoughts on this? Also can anyone recommend other primes that are great with the GH4? Thanks
  11. I noticed Jupiter Ascending used Leica lenses. After a little research I found this: http://www.hurlbutvisuals.com/blog/2014/03/why-do-we-want-flat-glass/ The Cooke has distortion and less pleasing bokeh (only 5 blades), however it just looks better ("3D"). Testing cameras and lenses against each other is a useful exercise. I've been testing the GH4 against the A7S in studio lighting and the GH4 is looking better, especially in skintones. I had tweaked the A7S to look similar to the 5D3 and thought it looked pretty good until I did the same with the GH4. Under studio lighting, the GH4 produces nicer skintones and a cleaner image (+ 4K!). In December the Atomos Shogun will bring 4K to the A7S, however the GH4 will get 10-bit 422 4K at the same time (vs. 8-bit for the A7S).
  12. Just a short fashion film I shot during a photoshoot the other day. Its pretty much the first real thing I have shot with my anamorphic lens, mainly due to its lack of run and gun ability, but I found with the 35-70 things worked out pretty smoothly. Never had to swap out lenses and it performs very well. I did not use the new firmware update photo mode. Mostly 48 & 60 fps Let me know what you think?! (Ive got a 15second version on my page too)
  13. I don't know if this has been posted before, but here's Mauri Galiano's very nice test which compares the GH4's various aspect ratios in 4k "Photo" mode using a Bolex 16/32 1.5x, an Isco 1.7x and a 2x Proskar. This sealed my decision to finally pull the trigger on a GH4. The only limitation I see right now is it's only in 30p and 25p. Apparently someone within Panasonic is pushing hard for 24p. Otherwise the GH4 (except low light) is an embarrsment of riches. eris
  14. Hello my friends, Here is my first hand's on with the SLR Magic 10mm T2.1 I just received on wednesday in premiere, and also with their new variable ND filter :) SLR Magic 10mm T2.1 on GH4 4K and 96fps 1080p mode My very first impressions : solid, heavy (420g), compact, sharp at full aperture T2.1, only 8.5cm minimum focus distance. The ND filter : good first impressions, and two great options on it : lever and hard stop ! Perfect for video ! SLR MAGIC 10mm T2.1 (f1.8 eq.), most of the clips @ T2.1 SLR Magic ND variable filter GH4 4K cinema mode + 96fps 1080p mode Vcine mode with Andrew Reid presets (http://www.eoshd.com) No color correction Music : Trentemøller « Come Undone (Trentemøller Remix) »
  15. Here's a same day edit of a film from a destination wedding in Ludhiana, India. The couple wanted to play the film at the end of the day. It was completely shot on a Panasonic GH4, color corrected in lightroom. Cinematic Wedding Film Shot in India Your comments would be appreciated.
  16. 4th anamorphic exercise, now with +1 diopter. Shot in Tel Aviv, Nov. 7, 2014 using a Panasonic GH4 in 4K Photo Mode, 3:2 aspect ratio, Cine D. Lenses: Canon FD 50mm f/1.4, Rectimascop 48/2x anamorphic. Edited and graded with FCPX.
  17. Some other day I found this lens on ebay and did a little research. There are some photos out there that impressed me but I found only one video. To me the "look" seems great on stills. Does anyone here have some experience with this lens and would like to see some opinions about the combo mentioned in the title. Thanks in advance and sorry for my bad english
  18. I've already the gh4 and I must buy either one very soon (12-35 or the lx100) but i want the sharpest. Does someone has the gh4 with 12-35 and the lx100 to make a 4k video comparison or advise about it ?
  19. Hi. I just wanted to show of my latest short film STORM. I shot it on the Panasonic Lumix GH4 with Kowa/Bell and Howell Anamorphic Please let me know what you think. //eric
  20. I got a brand new GH4 2 weeks ago from Adorama. The camera has worked perfectly thus far. Tonight I took it out to shoot some Halloween festivities. After taking a couple photos without any issue, I went to take another and noticed the EVF display was completely pink with a thin blue line (like 1 or 2 pixels wide) running down the left side. I actually snapped a pic with my iPhone: I've tried turning the power off/on, removing/reinserting the battery, removed/attached the lens (I have the Panny/Leica 30 mm 1.7), cycled through all the EVF/LCD display modes, swapped the memory card, switched between every mode, etc. but the EVF is only displaying a solid pink screen with a blue line down the left side. The LCD display works fine. However, if I switch the display mode for the LCD/EVF to auto or just to EVF, the screen is pink. Not sure how this could happen so suddenly. Has anyone else had this issue? Do I just have a bum camera? Having only had it for 2 weeks, I'm still under warranty (though this is the first time I didn't buy an extended warranty!) so hopefully they can just replace it or have it fixed free of charge! Thanks in advance for any info! Dave
  21. Greetings, I am looking for some banter on the topic of using native m43 lenses vs. a SpeedBooster + lenses Maybe you could provide both technical and anecdotal feedback on the following situations: 1. Video work - Narrative 2. Video work - Documentary 3. Photography In each domain you would discuss the Pros and Cons of native m43 lenses vs. SpeedBooster + lenses I just got my GH4 and thinking about either getting a speed booster and working with my current line of lenses: -Tamron 17-50 2.8 -Canon 50 1.8 -Samyang 85 1.4 OR Sell them all and use the cash to buy native m43 lenses. A third option would be to keep them and slowly add native lenses. I personally do both photography and video and selling my 5d3 to pay for new lenses or speed booster. Thanks in advance!
  22. Hello folks, I have a couple new wedding films to show, shot on the Panasonic GH4. As the months have gone by and projects have been completed I've grown more and more in love with this camera. At first I was really unsure of how I felt about it and it took some getting used to, especially the crop factor, but now it feels very natural on most shoots.
  23. Preface: I ve been pondering about the usability of panasonic GH4 or OM-D EM-1 as a main Photography camera. Yesterday I came upon a worrying bit of data that you GH4 owners might want to check out if you have the camera. When I was looking about the AF metering range of OM-D EM-1 and comparing it to the GH4 I found out other things on the imaging resource site. Performance test score says that GH4 shoots only 21 RAW images in series where as the OM-D EM-1 shoots the promised 50 . Panasonic GH4 (claims 40 RAW image burst) Imaging resource test = 21 RAW images and buffer takes 23 seconds to clear (sandisk 95MB/s) Olympus OM-D EM-1 (claims 50 RAW image burst) Imaging resource test = 50 RAW images and buffer takes 16 seconds to clear (sandisk 95MB/s) http://www.imaging-resource.com/PRODS/panasonic-gh4/panasonic-gh4A6.HTM http://www.imaging-resource.com/PRODS/olympus-e-m1/olympus-e-m1A6.HTM So if the data is right.. Panasonic has little PR thing in their hands again. I can safely say that Raw image buffer size is very important for pro photography. Needless to point out that the 12BIT raw images are not really helping GH4 either.. Why in the world they cant' they be 14Bit? Allso what I figured with a Metz AF 44-AF1 flash is that it does not seem to fire a a focusing beam on my GH2 or G6 bodies. I wonder that are all Panasonic models such that they dont support External flash focus beam? The feature is higly important when photographing indoors in poor light and when you cannot rely on the cameras own focus assit beam to reach far enough. So I'm asking that if any of you Gh4 owners might want to test it out. Use a sound recorder while you shoot a full Raw image burst with GH4.. From the sound recording file you can calculate the number of shots it was able to take before slowing down. Thanks in advance if anoyone is willing.. If the buffer is indeed only 21 images .. it could be something that Panasonic can fix via Firmaware or the test unit was pre production.. (I did not read the I.R. sites test that well)
  24. Aspect ratios including 4:3, 3:2, 16:9, and 1:1. Limited to 29.97P for U.S and 25P for 50Hz shooting. Shooters have the ability to shoot in Cine Picture profiles with full-manual controls. No 23.98 or 24P in PhotoMode. The 1:1 aspect ratio with a 2x anamorphic is a native 16:9. Internal recording at 100 Mb/s. HDMI output is still enabled! Might be a huge advantage to shoot anamorphic with a ShoGun after all! Will the GH4 embed the 1:1, 3:2, and 4:3 in a 3840x2160? I'm noticing a completely different grain structure in PhotoMode... Shot a 16x9 in 3840x2160 in Movie Mode and a 16x9 at 3840x2160 in PhotoMode and the grain texture in PhotoMode shows signs of compression artifacts not found on professional video or film cameras. Sorry. It's almost as if the sensor is acting differently. It's possible to notice the grain-structure change in 10x LiveView. The codec already has issues with recording in low-light, as seen by Dave Dugdale's GH4 vs. A7S demonstration (Dave's video mentions how a white background in low-light causes strange codec issues... I'm in a similar circumstance and it's helping to distinguish the new noise-floor patterns). This new grain texture appears to be present at ISO 320 and above. The white backdrop is close to 35 - 45% luminance values and not 80 - 95%). Needs more testing and proper lighting. Also, I'm under a 5200k CFL and not a professional non-strobing video light. However, this may be distinguishable in future tests with proper lighting and at low ISO values. Keep an eye out for it. Other info about 2.0 firmware... - - No new Gamma Picture profile. - - No 23.98 in 4096x2160.
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