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black magenta?
This may not even be a panasonic question specifically, but lately when I’ve been shooting outdoors in direct sunlight and add either a polarizing lens or a neutral density filter (not the built in NDs) an actor’s otherwise completely black suit gets a magenta hue. These filters dont seem to effect any other color but the black of his suit, and the camera without these lenses does fine including with the built in NDs. Has anybody ever heard of this? Is it a reflectivity issue, or some optics thing I’ve never heard of, or is it the inexpensive and affordable (cheap) set of polarizers and NDs I’m using?
Thanks
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4 Replies
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How about a still?
Noah
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Are you seeing this on just one monitor, or does it appear regardless of where it is displayed?
There are some colors, given the monitors they play on, that will appear different. This is especially true of blues, reds and purples displayed on “consumer” monitors/TVs.
And yes, if the suit is tweed, and/or with tight patterns, it may very way “change colors” because of way it’s scanned and displayed on a NTSC monitor.
Do other blacks appear this way, or just the suit?
Good Luck,
Tim Scarpino
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Unrelated possibly, but have you done a black balance recently? If you’re having issues in the dark tones be sure to do a proper black balance (hold in the white balance button a few seconds and it’ll go into the black balance process). Might clear it up a bit, and in any case it couldn’t hurt…
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Yes it appears on all monitors so I think it really is happening, but I have not tried looking at any other blacks, I suppose I’ll try that tomorrow when I go back to shoot the scene. My feeling is that it’s the weave of the suit or the material. I vaguely remember hearing about some reflectivity problems with silk, does anybody know anything about this? I’ll try reseting the black balance thats a good idea. Otherwise I’m kind of stumped but I can “almost” understand how a polarizing lens may exacerbate the problem if it really has to do with weave or material of the suit but I cant figure out why the same thing would happen with an ND filter when the in-camera NDs dont cause this, I originally thought my lenses were just poor quality, now I’m not sure.
I’ll post tomorrow evening let you know how I goes, in the meantime any suggestions on how to pull magenta from an image in FCP HD?…haven’t had to do a lot of color correcting so far.
Thanks
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