Amazon.com : Canon RS-80N3 Remote Switch for EOS-1V/1VHS, EOS-3, EOS-D2000, D30, D60, 1D, 1Ds, EOS-1
Remote switch is useful to prevent camera shake for super telephoto shots, macrophotography, and bulb exposures. The RS-80N3 remote switch works just like a shutter button, enabling halfway or complete pressing. It also has a shutter-release lock. Compati...