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Everything posted by Andrew Reid
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I heard about the file renaming technique and the stream copy. Whilst I think both of you for your suggestions and effort, unfortunately the approach doesn't work. The 1D C needs to be ProRes (via Resolve) for you to edit it smoothly and for Premiere to not break the footage with a ton of banding.
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What's youtube compression got to do with permits?!
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Resolve uses the GPU to render to ProRes, does ffmpeg? If not then it isn't faster, and if you want to transcode only a selection of clips in the directory, you'd have to list them out one by one on the command line or move the clips to their own directory... pain in the arse!
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It depends where you're shooting and what with. Small crew of 2 or 3 with small camera, very unlikely to draw attention from the authorities. Bigger crews, bigger equipment will get more questions asked. Shooting in the street you usually don't need a permit, shooting on government owned infrastructure (i.e. trains) or privately owned locations that are open to the public (i.e. building) you are more likely to need one. General rule of thumb if it is non-commercial work is just go and shoot and see what you can get away with. What's the worst that can happen if you're sensible about it?!
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Your logic is impeccable sanveer. Let's apply it to the real world. As long as it looks good, doesn't matter if it's shot on an USB webcam. Happy shooting... upload the results tomorrow. And no cheating...
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First shot, 1D C in Premiere, exported to 4K TIFF frame, converted to 1080p JPEG in Photoshop for the web Second shot (below), 1D C in Resolve, exported to ProRes. Then into Premiere, 4K TIFF to 1080p JPEG same as above. Even without looking at the 4K version you can tell the difference, so will apply to final Vimeo upload and how the mass audience sees your material...
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Resolve seems to be the answer. It handles the 4K MJPEGs properly, converts in realtime to ProRes and the files then display correctly in Premiere and are fluidly editable. Difference is marked. Blog soon. I think this same trick can be applied to other cameras like the NX1. Will test. Seems we have not been doing them justice by using Adobe software. It's bad. Very bad for them to not have fixed this yet.
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Found a fix and it's even more astonishing. 1D C uses the ITU 601 decoding matrix (not more common HD rec.709) and luma is 0-255 full range, not broadcast safe range of 16-235. Transcoding in 5DtoRGB to a luminance range of 16-235 fixes the problem. Premiere is definitely not supposed to screw your 0-255 footage like this. In the fast colour corrector you can simulate 16-235 from 0-255 by changing the input range to those figures. The banding remains. So import a 16-235 file and it's fine, but the problem now is that the dynamic range is reduced because 0-255 isn't remapped to 16-235, it's clipped instead. Here's my theory as to what Premiere is up to - I think it's trying to do some dodgy remapping of 0-255 footage to the broadcast standard of 16-235 and giving us banding on a ton of 8bit cameras. Not good!!
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10bit requires hardware support and won't be possible. Best to focus on petitioning them for software features like focus magnification whilst recording, good high res peaking in live-view and whilst recording, and the higher bitrates of course.
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Could this problem - http://philipbloom.net/2013/02/03/canon-1dc-mjpeg-compression/ Actually be this? https://forums.adobe.com/thread/1119755 It seems to me like the infamous 8bit banding we see with some cameras actually... shock horror... not the fault of 8bit OR the camera, but a bug in Adobe Premiere. Scaling for retina displays and other forms of display driver funkiness can also cause banding. So I got my Samsung 4K display out and tried playing back the file 1D C 4K MJPEG file in Quicktime at the native res (no scaling). To my astonishment the banding vanished. Just a bit of blocky noise and that's it. Looks even better in VLC Player with a fine noise grain over it applied in the player settings. Here's an exported frame in TIFF format and a screen shot of the same file in Quicktime Player at native 4K res on my Samsung display. Pretty big difference!! http://www.eoshd.com/uploads/1dc-premiere.zip Nothing special just a very shoddy test shot But 2 thirds of the frame are gentle gradients so great to test with. As you can see the output of the file in Quicktime is much smoother than in Premiere which has the discoloured banding every other 1D C user reports. So... what's the cause? And why the hell can't Adobe test their products properly? Going to switch to Resolve for editing if they don't fix it. It may have effected my other cameras too, like the NX1, so quite serious. The problem is on both the exported video and the Premiere timeline at 100%. Really need to find a fix. The video preview settings for the sequence don't change it, neither does swapping between CUDA, OpenCL and software for the mercury playback engine. Tried a lot of other settings too but no good!
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Rodney Charters: BM Pocket Camera, 4K acquisition & Alexa
Andrew Reid replied to enny's topic in Cameras
Lovely guy. He bought my GH4 Shooter's Guide last month -
New design looks good John. What about availability and pricing? Cheers
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- Vintage Digital Remastered
- Floating Zone Focus
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The FS7 is indeed very good value for money and the slow-mo is great too. However it's quite a different class of camera, it's a C300 type thing not a DSLR. I needed to replace my 5D Mark III not just for video but for stills. The ergonomics of the FS7 are a great improvement over the FS7 but the menus sound like a disaster and the faulty behaviour with the Metabones adapter would be a problem until they fix it. I still hope to check out the FS7, in the meantime the KineMINI 4K looks to be a good alternative. The file sizes in CineForm aren't bad at all for 4K and it does 120fps at nearly 2K... in compressed raw!
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Yes lovely image but impractical as hell
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That's almost like being invited to see how the trick of cinema actually works. Mesmerising.
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KineMINI 4K goes full frame with modified Speedbooster
Andrew Reid replied to mtheory's topic in Cameras
Ah yes it was indeed. Would love to hear what Rich says about the mod. Here she is not quite rigged up but the 1D C is ready to provide some competition Very impressed with the changes they've made over the old Mini so far. 4K image looks amazing and the camera is 10x more responsive. Much nicer feel to the all important command joystick and record buttons too. Start up time has been more than halved, down to 20 secs. More pics... https://www.storehouse.co/stories/r3hpj-kinemini-4k -
Well we are about to find that out sir!
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Why is the PC industry so late to the party here? PS4 has the hardware & software for HVEC but not PC / Mac. Silly!!
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Interesting that Sony support it. Is their player exclusive to the PS4 or is there a PC version as well?
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KineMINI 4K goes full frame with modified Speedbooster
Andrew Reid replied to mtheory's topic in Cameras
My KineMini 4K arrives this week! Just on loan for a review. 4K CineForm. The 2K goes up to 100fps. Interesting about the focal reducer being modified to fit. -
Lovely shots Ed. Have you tried it with the Shogun in low light yet? It's better, the noise is much finer.
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Thanks for the review Oliver! Any original files to peek at? Motion cadence is a funny thing... I think IPB codecs (long-GOP) have a tendency to look more videoy. ALL-I codecs store every frame so you get a more 'true 24p' look. Examples of ALL-I codecs... Raw (5D 3 Magic Lantern, BMCC, etc.) MJPEG (1D C) GH4 ALL-I modes (but not 4K, which is IPB only) On the FS7, the 4K XAVC codec is H.264 IPB long-GOP, so for every 6th real frame there's likely 5 in-between that are synthesised by the codec, reconstructed. The codec gets a raw stream so the sensor reads every frame off, but then it throws them away after compressing. Usability it seems like a mix bag. How much do you have to dive into the menus, or can they be ignored most of the time? How long is the boot time? Getting a KineMINI 4K camera to play with tomorrow, just a demo unit, not keeping it but will put a review online. I think Sony have issued a firmware update for the Metabones adapter / aperture bug, you may want to check it out. I think News Shooter reported on it last week?