Easy to use - just plug and use
  Shutter release button with lock - for long exposures shooting and continuous shooting
  Halfway pressed button - for auto-focus and exposure metering
  Colour: Black
  Use this shutter release to avoid camera vibration and get sharper pictures. 
  It helps preventing vibration during long   exposures (time-lapse photography), 
  Perfect for Close-Up (Macro photography) or Continuous shooting.  
  Cable total length: about 1m

  Compatible with:
 
 Canon EOS 1D, 1D Mark II, 1D Mark II N, 1D Mark III 1Ds, 1Ds Mark II, 1Ds Mark III, 10D, 20D, 30D, 40D, 50D, 5D, 6D, 7D
 5D Mark  II, 5D Mark III, D30, D60 (not 60D!), D2000 Canon EOS Film SLR 1V 1VHS 3 KODAK DSC-530