An indispensable remote control, and a quite affordable price. Unmissable for tripod shots to be sure not to move the appliance, or for me for long exposures. Attention has to position the M or S mode and turn the rear wheel (selection of the exposure time) to BULB! Then it is a breeze: either we let down the remote control button is released and at the right time, or the button is depressed and slid to HOLD to hold without tiring! Used on my Nikon D200, I confirm its full compatibility!