Phottix Wired Camera Trigger Remote C8 for Canon Cameras (PH10450) A compact remote switch made specifically for Canon cameras Features all the functions of the camera's shutter release button which is essential when limiting camera shake or when taking long exposure shots Very straight-forward and user friendly. Half-press on the shutter button will cause the camera to focus, and full-press will trigger the shutter and cause the camera to take a photo The remote shutter button can be locked into place for long exposure shots Limited 1-Year Warranty