This unit is compatible with the following cameras:

• Nikon D1H
• Nikon D2H
• Nikon D3
• Nikon D200
• Nikon D300
• Nikon D700

It has a two-stage release button: press halfway for autofocus, press fully to release shutter and take photos; press fully and push forward to lock the button for long exposures or continuous shooting. The length of the cable is 90 cm.