Canon RS-80N3 Remote Switch
Remote switch suitable for Canon SLR cameras with a N3 type remote socket such as the EOS 20D, 30D, 40D, 50D, 5D MK II, 7D and 1D series. 80cm / 2.6ft in length. Also featues a shutter release lock. Ideal for macro photography, bulb exposures and when using super telephoto lenses.