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Shift Fields question
Hi,
I’m editing in PAL 10bit Uncompressed (Upper Field) and need to output a PAL DVCAM tape (Lower Field). The resulting movie has a field dominence flicker.Rather than applying the Shift Fields filter to each clip, I outputed a PAL DVCAM movie, and then re-imported it back into a PAL DVCAM sequence and applied the Shift Fields filter before re-rendering and doing my final output.
According to Apple’s KB note:
>>To match a clip with upper-field dominance to a sequence with lower-field dominance, set the Direction Control parameter to +1.
>>To match a clip with lower-field dominance to a sequence with upper-field dominance, set the Direction Control parameter to -1.Based on this, I should be setting the filter to +1, but when I do this, the video litteraly moves down and a few pixels are cut off from the bottom of the frame. When I apply the -1 setting, it removes the flicker. Is there any harm to using -1 when Apple says it should be +1 ?
Thanks……
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1 Reply
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Have you ever tried to physically just move the video up or down one pixel? Under the motion tab, adjust the center to 0,1 and see if that helps. I have used that trick to check field order, so I think it should work to fix field order.
If it works for you, nest your original 10bit seq and adjust the center of the nested seq. which should still play out in realtime.
Be sure to watch it all on an external monitor with interlacing though to check!
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