Zap-Shot ZS-2 Wireless Radio Frequency Shutter Remote Control for Canon Rebel XT and XTi and Pentaxist, K10D, K110D and K100D Digital SLR Cameras Wireless remote for the Canon Digital Rebel, Rebel XT and XTi, EOS 300D, EOS 350D, and EOS 400D digital cameras Allows for shake-less shutter operation for super-telephoto, macro, or night shooting, or for self-portraits 100-foot (30-meter) range; does not require line-of-sight release Supports unique coding for security and distinct transmitter-receiver relationships 3-button operation for pre-focus, shutter, and lock; locking function for bulb exposure