I use halogen reflectors (150Watt) for product photography. Yes I know, the color temperature is not white, but I think is not a big problem because White Ballance solve this issue. I like to shoot on "Auto White Ballance" and RAW. But I want to ask a simple question. What I need to use in Camera Raw as white balance reference. For example is a good idea to shoot Auto and put a piece of black paper in light tent ? And use this black point in camera raw to correct white ballance? I need ideas only for Auto (my situation), not Preset white ballance, please.. Thanks!