Douglas Kent Hall is one lucky bastard. During the late '60s and early '70s, he somehow nabbed a job photographing some of the greatest rock 'n' roll superstars of the age. Of course, it's what you do with your luck that counts, and Hall did spectacular things. His photographs of Jimi Hendrix, the Rolling Stones, Tina Turner, Cream, the Grateful Dead, the Doors, Santana, Led Zeppelin and countless other legends are as jaw-droppingly dramatic as any you've ever seen. A retrospective exhibit of Hall's rock 'n' roll photographs opens this Friday, July 16, with a reception from 5 to 8:30 p.m. Runs through July 30. This show will rock you. 242-6367.