1.Halfway press auto-focus
2.Completely press take-picture
3.Release lock
4.Warranty:one year

1.Halfway press auto-focus
Pressing release button halfway activates auto-focus and starts photometric system
2.Completely press take-picture
Pressing release button completely to take a picture
3.Release lock
Pressing release button completely and moving to lock the camera and start continuous shoot or long exposure

For CANON 1D/1DS/EOS5D/50D/40D/30D/20D/10D 

Cable length: 90CM
Volume: 96*29*21.5mm
Color: Black
Weight: 54g