Anyone can go in the shop, you don't need to go to the exhibition. I haven't been to the exhibition yet as I'm going with some MJJCers in Jan. Plus I'm skint until then. The staff will allow you to take pictures in the shop but not the exhibition. As soon as you walk on the carpet where the queue to get in is its no cameras.
Do you have to hand cameras over and pick them up at the end or just keep them away?