Remote Control Release with a two-stage release button (autofocus, release). The unit is lockable, for shake-free long-term exposures. The Hama Remote Control Release Ca-2 is suitable for: Canon EOS 5D/30 D/60 D/10 D/20 D/40 D/1 D/1 DS/3/1V/Kodak DSC520. It is equivalent to the original remote control release: RS-80 N3. The length is 80 cm.