Operates your camera remotely when taking telephoto pictures and low light pictures Just plug the remote into a compatible Canon digital SLR camera and you can begin shooting remotely Features autofocusing, continuous shooting and long exposure functions Autofocus on a half press of the button and trigger the shutter with a full press Press the button and slide it forward to lock it for long exposures The Vivitar RS-60E3 Remote Shutter Release operates your camera remotely when taking telephoto pictures, low light pictures, and in other situations in which the slightest camera movement would produce blurring. Features autofocusing, continuous shooting and long exposure functions. Compatible with select Canon digital cameras.