This is an early m42 lens with a manually cocked aperture; with each shot you pull a lever to open it and it springs closed when you take the photo. Of course, if you are shooting on a mirrorless you will probably just leave it closed anyway.
The lens is in nice condition with clean scratch-free glass. The focus is stiffer than normal; it feels like the grease has gotten thick. It is not hard to turn.
The lens comes in the original case without caps.
SKU: 241028-5