Pentax's M42 telephoto — the Super Takumar 135mm f/3.5 with universal mount.
The Super-Takumar 135mm f/3.5 is a telephoto M42 screw-mount lens from Asahi Optical's Super-Takumar range, featuring multi-layer anti-reflection coating for improved flare resistance. The 135mm focal length on 35mm film provides a classic portrait telephoto perspective at a comfortable working distance.
135mm focal length, f/3.5 maximum aperture, M42 screw mount, Super-Multi Coated (SMC) formula.
The Super-Takumar 135mm f/3.5 delivers good sharpness and contrast with the characteristic warm Takumar rendering. A classic portrait telephoto for M42-mount film cameras and a popular adapted lens for mirrorless digital bodies. Smooth bokeh at f/3.5 with improving field uniformity from f/5.6.
Inspect for fungus, haze, and coating condition. Confirm M42 thread engagement is clean. Aperture blades should be oil-free. Check focus helicoid smoothness — 135mm telephoto helicoids can feel stiff after decades of storage.