Double Exposures: the M5 is the first M to allow the photog to reliably make double exposures. As explained in the Leica Manual: #1 shoot a blank frame with the lens cap ON. #2 take up the tension on the film cassette by turning the rewind crank you feel tension, leave the rewind crank in extended position as shown in the pic below #3 Turn the rewind release lever on the front of the camera downward, and hold it down as you cock the shutter #4 take the first exposure #5 repeat step # 3 as many times as you like for multiple exposures. #6 Fold rewind lever and move rewind release lever to vertical position for normal shooting.