
Pentax lenses have been developed using the latest in computer-assisted optical design technology. Lens surfaces are treated with Pentax's exclusive Super-Multi-Coating for sharp, high-contrast images. Key Features The 165mm f/4 LS (Leaf-Shutter) lens incorporates its own shutter mechanism which allows the use of a flash at speeds up to 1/500sec This is the only leaf-shutter lens in the 67 system, and is an essential item