[Hugh Chaloner]

I’ve been reading elsewhere about problems with output especially if downsized and exported as H264s. From what I gather it’s a bug in 10.3, perhaps what you’re experiencing is allied to this. However if your source files are “illegal” in the broadest sense, they’re never going to reproduce perfectly if they’re outside the rec709 gamut.

—
http://www.intercuts.com
(m) +353 (0)86 603 0987

[Hugh Chaloner]

1. yes, it does matter, recreate from originals.
2. proxies are compressed to f*ck, so if fine detail is important to your eye when setting a colour correction, then yes, you should colour correct using the ProRes media
3. no, there’s no reason not to (how many negatives can we get into a sentence?)

—
http://www.intercuts.com
(m) +353 (0)86 603 0987