Adapter ring to use PENTACON-six (Kiev-C) lenses on a Pentax-645 camera body.
This adapter do not have optical element inside, so there will not be any light loss.
All automatic functions (like auto-focus, aperture changing, etc.) do not work. It's a simple mechanical adapter and when you use it you should do everything manually.
Infinity focusing 100% guaranteed.
We are checking every(!) piece before shipping, so you can be sure they are 100% new and 100% working.