Question: What does everyone do about the color of their walls? If I am balancing with Grey Card what is impact on overall tone of photo based on wall colors?
And Expo Disc, who has been using this, I have heard about it but would like to hear more.
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Should I start a new thread with so many tangent questions? :taped sh
Color walls can reflect unwanted color onto your subject if your light or lights are bouncing off the walls. To minimize color shift from the walls, try not to have your light reflect off the walls.
If you have light spilling onto your subject from color walls, you *might* be able correct the color a bit by using a grey card, however it really depends on your subject, how much color there is and your post skills.
When I shoot weddings, I like to bounce my light off the walls at the reception to achieve a nice soft light, however if the walls are colored, I won't do it. I'll use shoot thru umbrellas instead. But sometimes I still pick up a bit of unwanted color so I'll tweak the color balance in post so that skin tones look good. If I'm shooting product shots where the color must me 100% accurate, I'll make sure that the only light that is illuminating the product is coming from my lights. I know that my lights are set at 5400K with a variance of +- 100k.
I suspect that the OP's problem may be that her lights are not all that accurate in terms of color balance. She should set her camera to 5400K and shoot some tests in a totally dark room with just her lights providing illumination. If she's still getting weird colors, then it could be a number of things.
1. The lights are not daylight balanced as claimed.
2. Her post processing is whack or she's using a different color space when editing.
3. Her camera is not set to the proper color balance.
The fact that she says her photos sometimes look "greenish" leads me to think that her problem is either #2 or #3.
