That thinking is likely what is behind the restrictions on specific kinds of camera equipment at some shows, like U2's, and on professionals. Even though millions of amateur photographers now own digital SLRs, there is still a mindset in the entertainment industry that anyone toting one at a concert is a professional and therefore should be limited in where and how they shoot. That's why some bands, like U2, make a point of allowing fans to take pictures, so long as they stick to lower-end equipment. "Since 2001, U2 has openly allowed fans to bring cameras to their shows," reads the FAQ on the site U2tours.com. "Your camera, however, must be a point-and-shoot camera; DSLRs are not allowed." - mediaeater