The CA-2 Hama Wireless Remote Control Release can be used to trigger the shutter without disturbing the camera, this will avoid any camera shake & ensure your images are pin sharp. The remote control cable release is ideal for taking pictures of subjects that are difficult to approach, or to minimise vibration for close-ups & time exposure. Generally used in conjunction with a tripod the CA-2 Hama Wireless Remote Control Release is ideal for taking pictures of subjects that are difficult to approach, or to minimise vibration for close-ups & time exposure.- Wireless remote control release (4channel 433 MHz) for Canon DSLR cameras with RS-80 N3 connection- With serial release & time exposure (bulb)- Range: up to 30 metres (also through the wall)- Very easy installation of the receiver via the ' Remote' input- Two-stage release key (autofocus, release); for the time exposure the release has to be pressed for 3 seconds Compatible with the following camera models: Canon EOS 5D, 30 D, 60 D, 10 D, 20 D, 1 D, 1 DS, 3, 1V, Kodak DSC520,