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Fix mid shot 2 frame exposure shift

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Nicholas Zimmerman
Fix mid shot 2 frame exposure shift
on Mar 15, 2016 at 9:10:12 pm
Last Edited By Nicholas Zimmerman on Mar 15, 2016 at 9:12:06 pm

I'm at wit's end on this. It's a single shot for an indie feature that's already been cut, colored, and sound designed. Their colorist has moved away so I'm correcting this single shot, but I do have his .drp so I've got access to his full grade and the source clip.

The issue is that there is an in camera aperture adjustment down 1/4 stop, in the middle of a ECU with lots of bokeh out back. The change happens over two frames, and is uneven -- i.e. it drops ~75% in the first from and ~25% in the second. I've spent hours trying everything I know, and can't get this invisible. Here's a list of some attempts:

  • Tried keyframing the first and final frame of the switch and matched.

  • Tried keyframing all three frames and matched.

  • Used curves to match.

  • Split the channels and matched each individually

  • Used Color Stabilizer in After Effects

  • Exported my matches from Resolve and tried using morph and dissolves in Media Composer

  • Brought into FCPX and used match color, mMorphCut, blend modes, etc.

  • Used BCC Flicker Fixer in Resolve


  • It seems that the dynamics of the image just changed too much because of the aperture change, an no matter how close I bring them, it still looks the frame shifts very abruptly. If anyone has advice, I'd love to hear it, as this shot just won't look natural.

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