The adapter is made to very precise and high standards to ensure exact infinity focus on the Canon camera. With the EOS/NIK-NT adapter automatic exposure metering via stop-down metering is possible as is aperture priority auto exposure. The new adapter features a lever on the side of the adapter to let users control the aperture on G series lenses. For users of non-G series Nikon lenses Novoflex also offers their original Nikon to Canon adapter, the EOS/NIK. The adapter"s high precision manufacturing assures precise infinity focus and ensures that the lenses deliver their full quality to the digital chip.