Pentax Screw-K Mount Adapter

This Pentax Lens Mount Adapter allows screw mount lenses to fit on modern K-bayonet mount cameras.

When used with this adapter, a screw-mount (Universal Thread) lens will focus to infinity (cannot be used for automatic diaphragm or open aperture metering). When used on any Pentax automatic camera aperture priority camera automation is retained when using screw-mount lenses and accessories.