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New to the 5D III (coming from the dusty old 7D lounge over here!), and I have a question regarding highlight roll off with the 5.7k anamorphic footage. So I see the general consensus seems to be to process all of this footage in the mlv app, seeing as though it handles tone mapping the best. Problem is that my system doesn't seem to play very nice with the ProRes footage from this app, no matter the flavor (422LT, 422, 422HQ or 4444). It plays back, but not in real-time. It's always choking, as if being played back from an old slow rpm hard drive, and I have SSDs plugged in via USB C. Should be nothing right? Well, if I export to cDNG, and process/de-squeeze in Davinci Resolve, the footage plays back (in app) with no problem– a little slower with each node added (to be expected with a humble 8GB graphics card from 2018). Exports to any and all ProRes and h.264/265 play back and edit like a dream. All good on the western front. HOWEVER... highlight roll off is very challenging... not impossible, but noticeably bad. Is this really a Davinci Issue? Is it a result if shooting 14Bit lossless -> 12Bit? I know the lossless compression uses Canon's mjpeg compression method (or so it says)... but no matter how messy the compression algorithm, these highlights shouldn't be any worse than Canon's default h.264 compression... right? I'm confused. This isn't a problem whatsoever when shooting true 14Bit (non-crop) in 1080p. So what is going on here? Can someone explain?