On my current 4K Projects shot on the Panasonic Varicam 35 AVC-Intra 4:2:2 YUV 10 bit BT.709 I transcoded to Avid DNxHRHQX. According to the document:
The DNxHRHQX is 12 bit. Now I am delivering a DPX sequence for Netflix and they request 10 bit for the IMF file spec. As I am delivering the source file that the IMF will be made from I'm curious if I should deliver 10 bit or 12 bit DPX files. Given the required color space Netflix wants is BT. 709 (Head/Legal Range) I am exporting keeping levels at legal. The question is should I keep it 12 bit like the DNxHRHQX is listed to be or go 10 bit as that is the ultimate delivery requirement? I'm assuming they will be using a Clipster to make the IMF files. Would Clipster make a better IMF with a 12 bit DPX or is 10 bit more efficient and the resulting 10 IMF indistinguishable? The typical school of thought has always been use the highest quality source you can even if you are going to dumb it down later. Is that rule still in play or is there no practical difference?
John Moore Barking Trout Productions Studio City, CA bigfish@pacbell.net
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Posted by: John Moore <bigfish@pacbell.net>
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this is the Avid-L2
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