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Question regarding “interpret footage>main>separate field”
I know what it does but I have been confused about when to use it for the longest time and would like to understand it once and for all.
Say, if I have a DV footage (Lower field first) and I want to do something visually drastic like “time remap” and the result is to be used as a part of a DV edit in FCP. Should I “separate the fields”? or should I not since the source and destination are both interlaced the same way? I have been trying to avoid the issue (in my head) by interpreting the source at double the frame rate and rendering the result out @ lossless at double the frame rate for FCP, not very efficient, I figure.
Many thanks in advance
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2 Replies
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Simple answer:
If it’s interlaced footage, always separate fields, regardless of the final output.
Unless you use 3rd party de-interlacers like Re:VisionFX FieldsKit or Magic Bullet. In that case you don’t separate fields, but leave it to the 3rd party effect.
Bar3nd
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Same as Barend, but just remember that if you don’t field render back out your footage will be essentially half resolution as you’re losing the second field and getting an interpolated one instead. Sometimes if I know I’m not transforming I’ll choose not to separate the fields and do a frame render.
Glenn Stewart
1k Studios
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