This ClearMax Multi-Function Timer remote control remote provides a simple trigger function for camera shutter release. It also functions as a timer remote and can be programmed to function as an intervalometer.The remote control features a 90cm (~3.2ft) cord, self-timer, interval timer, long-exposure timer, and exposure-count settings. The timer can be set anywhere from 1 sec. to 99 hrs., 59 min., 59 sec.Fully compatible with:Canon EOS 5D, 7D, 1D, 1D Mark II, 1D Mark III, 1D Mark IV, 5D MARK II, 1Ds, 1Ds Mark II, 1Ds Mark III