Canon Extender EF 2x III projector lens This TTArtisan 25mm f2 is

This TTArtisan 25mm f2 is a very compact lens for APS-C format Nikon Z cameras

some oil on diaphragm which does not affect function

The Graflex Optar 135mm f4

8 lens for the Mamiya 645 camera system

Lenses have light internal dust

Canon Extender EF 2x III projector lens This TTArtisan 25mm f2 isCanon Extender EF 2x III 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: this works with select Canon L series telephoto lenses only. Please confirm compatibility between your intended lens and this teleconverter. Clean glass and excellent function. Includes front and rear caps.