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Well...its a remote. I use it with my d50 and it works to about 30 ft. When I get the shot composed, I press the timer button 2x to get the camera ready to shoot, press the button and step out, or sit down and press the button during group shots. In bulb mode I do the same. Press the timer 3x to get it ready, press to start the shot and step away. Come back and press the button again and it stops the shot. Works just like it is supposed to. One thing to remember is to set the camera's time to receive the signal. The camera automatically turns the IR off after a certian amount of time. If this happens, it won't accept it until you turn it back on. If you'll be taking a lot of shots, just change the camera's setting to look for the remote for 5 minutes or so.