I brought a Sony DSC-HX5V to the last tour. It's a little point-and-shoot with 10x optical zoom (plenty to get some good shots of the stages from the upper bowl). I have a case with a belt loop and carried it on my hip. Didn't have a problem. I would guess that anything that can fit in a purse or in a hip case would be fine. A larger DSLR with a long lens, I don't know. YMMV.