Exakta 50mm f/2.8 Extenar Macro w/Schacht Helical Focus Mount GOOD

Very unusual Exakta lens. It consists of two parts; a front lens and aperture assembly with a very recessed rear element, and a matched A. Schacht helical focus mount (Exakta Mount).

This lets you mount the front lens assembly to a bellows or extension tubes (not included) for extreme close-ups, or to the Schacht helical mount which still allows macro up to 1:1.

Condition is good. The glass has some minor dust.