A compact Remote Switch with a 2.6'/80cm cable to prevent camera shake for super telephoto shots, macrophotography and bulb exposures. Handy for taking pictures of subjects that are difficult to approach, or to minimize vibration for close-ups and time exposure. The Remote Switch works just like a shutter button, enabling halfway or complete pressing. It also has a shutter-release lock. With the EOS-3's Custom Function No. 12 (mirror lockup), camera shake can be further reduced. Compatible with EOS-3, 1V HS/1V, 1D, 1Ds, 1DS MARK II, 1D Mark II, 5D, 10D, 20D, 30D, D30, D60 and D2000.