Monday, March 1, 2010

[Avid-L2] Flipping the fields, that old chestnut

I've seen many ask over the years whether Avid can reverse the field dominance of a clip. As we know, it can't. Usually you're best off just reimporting the file with the setting reversed (if you know what it was set to in the first place) but in the case of material where that's not practical (like the imports would take an eon to do again) we've been experimenting with alternatives.

We've tried the technique of keying through an offset frame using a matte of odd or even lines. This works but is quite cumbersome to apply to every shot. So I had a bright idea which didn't work when tried - I'd appreciate some extra brains to at least tell me why!

If I drag a Scratch Removal effect onto the clip (not click the button which adds two edits but put the effect on the whole clip), then draw a shape covering the whole image and set it to "relative", offset to 1 and not work in frame mode, surely that should offset all the fields by 1 and reverse the dominance. It didn't seem to work when we tried it. Any thoughts?

Cheers!

Paul

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