by Adorama
(27)Buy new: $36.95
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Eliminates the need for a cable release. Allows the camera to be fired from a distance up to 100 ft. uses RF (radio frequency) signals, not line-of-sight like infrared. Transmitter has a 2 position switch...press lightly for prefocusing, and then continue pressing to release the shutter. LED lights indicate prefocus and exposure. May be used on up to 16 channels...user settable.