Asahi M42 Extension Tube Set m42 adapter Canon won't say

Canon won't say

with some wear and tarnishing of the aluminum barrel

with minor cosmetic wear on the IR cover and flash head

Includes a clean SMC Pentax-M 50mm f/1

9 lens for M42 thread mount

Asahi M42 Extension Tube Set m42 adapter Canon won't sayThis Asahi extension tube set includes three M42 thread mount extension tubes: roughly 9mm, 19mm, and 29mm, for a total of about 57mm extension when combined. These are manual diaphragm tubes without autodiaphragm passthrough. In excellent condiiton overall, with minor paint and finish wear. Includes original box, which is lined with purple flocking and white satin, and rules.