Use a cable or
wireless release with your compatible digital camera to get optimal sharpness or to shoot remotely such as with stand-in portraits or wildlife
photography.
Night scenes or long
exposure photography require that the camera be perfectly still while the
exposure is made. Even when mounted on a tripod, pressing the shutter release on
the camera creates vibration, which is then detectable in your image as a lack
of sharpness or blur. The use of a cable or wireless remote eliminate this undesirable
camera shake.