The SMC Pentax-M 28mm f/2.8 is a compact manual-focus wide-angle lens designed for Pentax K-mount film and digital cameras. Produced between 1977 and 1984, it features multi-coated optics, a solid metal build, and a classic rendering style. This copy has fungus inside the optics, so it is being sold for spares or repair only.
Key Features:
Focal Length: 28mm – Ideal for landscapes, street, and travel
Maximum Aperture: f/2.8 – Bright for low-light and depth control
Optical Design: 7 elements in 7 groups – Delivers vintage character
Coating: SMC (Super Multi Coated) – Improves contrast and reduces flare
Focus Type: Manual – Smooth helicoid with depth-of-field scale
Minimum Focus Distance: 0.3m – Good for close-up compositions
Diaphragm: 5 blades – Produces classic bokeh
Mount Type: Pentax K – Compatible with K-mount film bodies and digital via adapter
Filter Thread: 49mm – Standard Pentax size
Build: All-metal barrel – Compact and durable (63×31mm, ~156g)
