Canon Extender EF 2x II format_APS-C and boy oh boy is

and boy oh boy is that autofocus fast

but the protruding thumbscrew means that the camera can't sit flat with the plate attached

The Nikon HN-3 is a round metal hood for 52mm threaded lenses

This is a Calumet rebrand of the Rodenstock Grandagon N lens

but do have a smallish keg

Canon Extender EF 2x II format_APS-C and boy oh boy isCanon Extender EF 2x II teleconverter, in excellent cosmetic condition. Doubles the effective focal length of the lens mounted to it. Since the teleconverter extends into the back of the lens, not all lenses may be mounted. Please confirm compatibility between your intended lens and this teleconverter. Clean glass and excellent function. Includes box and soft pouch.