I'm setting up my first still life, in the shadow box, but I have a problem:
I have got the white balance right (white near the top of the subject in the shadow box matches white on the color checker, in terms of value). Tone can be different.
However, black paint on the color checker is much too bright to match the darkest areas in the shadow box. Problematic spots are for example the black fabric-background, and shadows in the lower parts of the subject itself.
The only place black matches black, is near the top of the subject, where white also matches white. This leads me to believe that the shadow box must be uniformly lit. But then what is the point of a shadow box?
I have placed a desktop lamp inside the shadow box itself, bacause I liked the shadows the subject made, when the light source was nearby. I know the light is supposed to come from quite high up, but even then the box would not be equally lit in all places, right? Which makes me believe I would still have a problem with matching black.
It seems it is only possible to match either white or black, but not both at the same time.