Satechi MTR-A Timer Remote Control Shutter for Canon EOS-1V/1VHS, EOS-3, EOS-D2000, D30, 1D, 1Ds, EOS-1D Mark II,III,IV, EOS-1Ds Mark II,III, EOS-10D, 20D, 30D, 40D, 50D, 5D, 5D Mark II, 7D Fully Compatible with RS-80N3 Ideal for time-lapse photography including blooming flowers and astrophotography Function as self-timer, interval timer, long-exposure timer- can be programmed as an intervalometer Includes time remind speaker and release signal lamp, LCD display and screen illuminator Handy for taking pictures of subjects that difficult to approach with minimized vibration Can activate the bulb function on the compatible cameras