Canon Extender EF 1.4x III brand_Contax and compatibility with any Pentax

and compatibility with any Pentax K-mount lens

or you can use it by itself in case you're just curious how far away something is

5 USM is in excellent condition

4 Nikkor Pre-AI is in excellent condition with only minor cosmetic wear

) forgot to put one on there

Canon Extender EF 1.4x III brand_Contax and compatibility with any PentaxCanon Extender EF 1. 4x III teleconverter, in excellent cosmetic condition. Increases the effective focal length of the lens mounted to it by forty percent while maintaining complete communication between lens and camera. 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 pouch.