The QC-2C Lens Changer from Dorr is a really nifty piece of kit! It allows you to change your lens on your camera instantly when a quick change is essential and the correct focal length must be available within seconds. This Lens Changer is able to hold 2 Canon EOS Lenses on either side of the aluminium housing and the adjustable shoulder strap with safety carabiner is then placed around your neck for whenever you need your lenses changing.