For Pentax K-mount cameras
This allows to connect M42 screw thread lenses with Pentax K-mount cameras. The adapter is very thin that will allow to focus infinity, therefore, it comes with a connecting/removing tool.
Use your Hasselblad C/CF/CFi/CFE mount (Zeiss Distagon) lenses on your Pentax K-mount camera.
This allow Minolta SR / MC / MD / X-600 mount lenses use to your Pentax K-mount camera bodies.