On many occassions, the image that the camera takes has a distinct
reddish yellow hue to it. This includes the black background
sheet which changes color as well. Has anyone encountered this??
I'll bet you've got the white balance settings on the camera wrong
for your light source such as using tungsten lights with the camera
still set for ordinary daylight lighting..
With a film camera, it is a problem caused by using the wrong type
of lights for the film you're using, such as tungsten lights with
daylight film, or even just ordinary tungsten lights when the film is
balanced for 3400 photofloods. One would need to then fool with
various filters on the lens to correct the color balance.
But since you're using a digital camera, the fix is simple. You
probably are getting this result from using the wrong white balance
settings on the camera. Try setting the white balance to match the
type of lights you're using. If this still results in reflections
coloring the overall shot, and you cannot find a tweak to the white
balance to fix it, then open the image files in photoshop or similar
image editing software, and change the color balance as needed.
Pretty simple to do... Many of even the simplest image editing
programs, perhaps even the one that came with the Nikon, can do this
sort of simple color balance adjustments.