-
color correction problems
Hi,
I’ve got some old film footage that has some color “phasing” going on. It shifts colors mid shot on a few shots and we need these shots in this doc. It seems to take out the blue in the shot but i cannot seem to get it corrected properly. I have taken two vectorscope images of it. But can’t seem to add them to this post.
in Picture 1 the color is correct and the vectorscope reading is on a 20 degree angle to the left.
in Picture 2 the color has shifted and the vectorscope reading is on a 5 defree angle to the right.I have tried all of the color corrector filters and i cannot find any that will allow me to alter the vectorscope on an angle to match the origianl color.
Can anyone help me? I can email you the pics if that helps.
I can be reached at mi*************@*****il.com or at 1-800-667-4456.Fairly desperate here since this is the final day before we ship to a broadcaster.
Thanks in advance,
Mike Wavrecan -
1 Reply
-
[mike wavrecan] “in Picture 1 the color is correct and the vectorscope reading is on a 20 degree angle to the left.
in Picture 2 the color has shifted and the vectorscope reading is on a 5 degree angle to the right.I have tried all of the color corrector filters and i cannot find any that will allow me to alter the vectorscope on an angle to match the origianl color.”
You can’t possibly want the vectorscope to just read the “SAME” on different sections of film.
If you DO, then all you need to add is a filter that allows you to adjust the “Phase” (that’s the “angle” reading on the vectorscope).The chance that the aged film has generally shifted only in PHASE is very slight.
I suspect that what you REALLY want to do is actually change the color BALANCE (add blue, subtract red, add cyan, subtract violet, etc.)
This might require dynamically adjusting (for instance) the 3-Way Color Corrector (3WCC) on a second-by-second (or so) basis.You can attempt to locate what would be “key-frames” of the best looking section (as you did) and then the worst-looking in relationship and “slice” (add an edit to) the clip in-between these two color conditions.
If you know how to use the “WHITE, MID, BLACK” eye-droppers in the 3WCC, do so and then place a relatively long dissolve on the cut you made so the changes will “ramp-in” along with the film conditions.
Repeat until done. (Its going to take awhile,)
Reply to this Discussion! Login or Sign Up