Keyframing Color Correction
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Final Cut Tutorials from Creative COW
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 | Richard Harrington
Washington, District of Columbia USA
©2009 Richard Harrington and CreativeCOW.net. All rights reserved.
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Article Focus:
In this episode of Final Cut Help, Richard Harrington takes a look at keyframing the three way color corrector in FCP. As details change in a movie clip you can have the filter adjust its values over time. This example uses a video of a bird starting in a bright sky and ending in water which is darker, the contrast transition is controlled by keyframing the saturation and color correction. The project files for this tutorial are included.
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Comments | | | | I recently shot some speeches indoors at a Wedding with my EX1. Much to my exasperation when I put the footage in the timeline to edit I found that the colour temperature changed from a neutral to slightly pink on occassions and maybe then to a blue/ green cast and then back again etc. Even on a shot with the camera position locked off for five minutes at a time the colour would be o.k. for maybe two or three minutes and then change for no apparent reason. ( no zooming or anything done to camera angle. ) So my first question is why???
The second part of my dilema involves trying to correct this in post.
I have watched the Richard Harris video on colour correction many times and in the past from memory it has worked although I haven't used this method for about a year now. So I thought I would try keyframing a colour balance correction in post using the three way colour corrector as per the tutorial.
This is what should happen:- I start with a section of the clip which is the neutral colour it should be having tweaked it a bit. I move the playhead down the timeline until I see the colour balance start to change to a greenish hue and I make a keyframe. I then correct the colour at that point to a more neutral balance . In theory then if I go back a few seconds to the beginning of the clip it should start with a neutral colour and when it gets to the keyframe it should play the colour correction I keyframed in and there should be little discernable difference.
However what actually happens is this:- I make all the corrections as I described but when I go back to the beginning of the clip the color has changed to a pinkish hue and then when I press play it gradually changes to the neutral colour I keyeframed in at the first keyframe ppint.
That is the simplest example. When I put in mutiple keyframe points it become too complicated to explain.
Can anyone shed a light on this or suggest another colour smoothing solution.
I am using FCP 6 and editing in a pro res timeline. The footage is xdcam ex from a sony ex1. I am using an imac running leopard.
brian paterson | | | | |
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