Nikon Lens to Canon Eos Camera Af Confirm Adapter (For 50d 40d 30d 5d Etc) This adapter allows you to use Nikon lens on EOS camera with AF-confirmation indication. With this adapter, your beautiful Nikon lenses can be used on digital or film EOS camera. With the incorporated AF-Confirmation chipset, you don't need to guess the correct focus by naked eye Precisely made of Brass, allows focus to infinity, with AF-Confirmation indication. Thru this adapter, you can use your Nikon lenses to fit on a Canon digital SLR cameras body, like digital Rebel