Pentax 300mm f/4 SMC Takumar M42 Lens

The Pentax 300mm f/4 SMC Takumar is a vintage manual focus telephoto lens built for M42 screw mount cameras, manufactured during the 1960s. Designed around the 35mm film format, this lens carries the classic SMC Takumar lineage that earned a strong reputation among film photographers of that era. The M42 screw mount — sometimes called the Praktica or Universal Thread Mount — was one of the most widely adopted lens mounts of the mid-20th century, and lenses built to that standard have enjoyed a long second life in the digital age thanks to the availability of M42 adapters for a wide range of modern camera systems.

At 300mm, this is a serious telephoto offering for a vintage optic, suited to subjects at a distance. The lens is strictly manual focus, consistent with the optical and mechanical design philosophies of 1960s SLR lenses. Weighing in at 1,120g, it has a substantial, all-metal build typical of the period.

For collectors, film shooters, or photographers who enjoy adapted vintage glass, this Takumar represents a tangible piece of photographic history from one of Japan's most respected optical manufacturers.