K&F Concept design and produce full range of lens adapters to fit lenses of Canon, Nikon, Pentax, Olympus, Leica, Contax Yashica, Minolta, Tamron, T2, C mount, Exakta, M39, M42, Pentacon etc used on Camera bodies of Canon, Nikon, Sony, Fujifilm, Pentax, Micro 4 3, Leica, M42, Cinema C mount.
Pentax K/M/A/FA/DA Lenses to M43 MFT Mount Camera Adapter
Solid, works well
Great build quality (solid metal insofar as I can tell) and does exactly what it says on the tin. The aperture ring works well, with a reassuring click between each stop, and I've had no problems with infinity focus on my unit.