Olympus OM mount lens to Canon EOS EF mount adapter - for 5D III 6D 70D 700D 650D extension tube Switching on "Shoot without lens"

Switching on "Shoot without lens" may be needed on several Panasonic M4/3 cameras

More detail about crop factors

You can also use an M39-M42 adapter ring (also available in our store) to fit M39 lenses with this adapter

Powerful and Stable

Olympus OM mount lens to Canon EOS EF mount adapter - for 5D III 6D 70D 700D 650D extension tube Switching on "Shoot without lens"For using Canon EOS cameras with Olympus OM lenses. It supports infinity focus. You should remember that the pusher with the fixed ring doesn't work, so diaphragm control of the lens is set manually. It is possible to use Macro rings and other accessories.