This simple Remote Shutter Release Cord works with Canon D-Series Digital SLR Cameras and has a 3-foot long cord.

This is a wise investment if you often take digital photographs with a camera mounted to a tripod. By remotely causing a digital camera to take a long exposure, you all but eliminate any chance of "camera shake" due to pressing the digital camera's built-in shutter button. This may be especially useful for nighttime, fireworks, cityscape or panorama photography.