This is a remote switch with an 2.6ft cord and a self-timer, interval timer, long-exposure timer, and exposure-count setting feature.
The timer can be set anywhere from 1 second to 99 hours. A new dial enables you to easily enter the numeric settings with a single thumb. The LCD panel can also be illuminated. It has the new N-3 type connector, which locks with a simple push.
The rear of the Controller has a slot to store the camera's remote control socket cap.
Works on Models:
EOS 1D /Mark II/IIn/ III, 1Ds /Mark II/III EOS 20D, EOS 10D, 1D, D60, D30, 40D, D2000, 1v/1vHS, 3