Asahi S3 Extension Tube Set adapter is a telephoto zoom lens

is a telephoto zoom lens for Micro Four Thirds that provides a whole lot of magnification- the full-frame equivalent of 600mm- in a lens that's only 14cm long

5 lens for Leica thread mount is a Soviet-made collapsible 50mm lens

and the bottom tightening collar is missing its rubber grip

with an accurate shutter

Asahi S3 Extension Tube Set adapter is a telephoto zoom lensThe Asahi S3 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 tubes: there is no stop down mechanism built in. In decent cosmetic condition, with paint and finish wear.