FHDcrew Posted August 12, 2022 Share Posted August 12, 2022 For a while I’ve been contemplating an experiment. Many cameras have burst modes where they write RAW stills to the card at a certain framerate. My Nikon Z6 for example can do 12fps at full resolution in 12 bit RAW. My thinking is as follows: Theoretically we could shoot in the RAW burst mode, and then use state of the art motion interpolation software, such as RIFE or DAIN, to fill-in the missing frames to get us to a usubale video framerate. Believe it or not, it works. I was able to shoot at the 12fps burst and interpolate the remaining frames, and the video sequence looked somewhat convincing. I was actually very impressed. Our problem here is buffer size. On many cameras, the high-speed modes only last a few seconds. This is the sad reality, as then the framerate slows down. A way around this is to shoot at a lower framerate to keep things continuous. My Z6 can do 5fps full-sensor RAW to an XQD card with no apparent limit. However, with tue current state of frame interpolation, 5 FPS just seems too low for anything other than simple slider/dolly moves. I filmed myself talking in the 5fps mode, and the result after frame interpolation was very unnatural movement. Where things are currently, 5fps is just too low. You really need at least 12fps to make things look decent. The other thing that could be tried, and I have tried this, is to lower the resolution/use apsc crop mode to basically shrink the file size down. I still couldn’t hit a sustained 12fps, but was able to get probably around 7fps continuous all-day. Sadly though, still not enough data to interpolate effectively. I’m curious if upgrading to a very fast CFAST 2.0 card would give me constant 12fps in this crop mode? I can think of cameras that would work well with this technique. The 1DX Mark II comes to mind, with an unlimited 14fps buffer using electronic shutter. That should bode well with frame interpolation. I’m also keenly watching frame interpolation advancements. I hope that within the next year or so, new advancements in the FOSS interpolation research unfold, so as very low framerate content (like that unlimited 5fps mode) can be interpolated with very natural motion. Curious to hear your guys thoughts. Manufactures are lame and don’t like to give us an uncompressed dump of the RAW video all of these cameras are capable of. Magic lantern proved all of these cameras could be giving us internal RAW video without stupid patents and licenses and proprietary codecs and Jeremy Youngs and bulky external recorders. Any ideas on not-crazy-expensive cameras that have a decently high burst-rate, without a buffer limit? Quote Link to comment Share on other sites More sharing options...
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