# Prevent camera shake for super telephoto shots, macrophotography & bulb exposures # Works just like a shutter button, enabling halfway or complete pressing # Shutter-release lock # 2.6-ft cable # Compatible with EOS 10D/EOS 20D/EOS 20D EF-S 18-55mm Kit/EOS 20Da/EOS 30D/EOS 30D EFS 18-55mm Kit/EOS 40D/EOS 5D/EOS D30/EOS D60/EOS-1D/EOS-1D Mark II/EOS-1D Mark II N/EOS-1D Mark III/EOS-1Ds/EOS-1Ds Mark II/EOS-1Ds Mark III/EOS-1v/EOS-1v HS Body/EOS-3