Production
1960 – 1989
Country
Japan
Optical
Gauss/Tessar/Triplet type, 4-7 elements in 4-6 groups
Updated
Jul 6, 2026
M42 Screw Mount · 50mm · f/2
Production
1960 – 1989
Country
Japan
Optical
Gauss/Tessar/Triplet type, 4-7 elements in 4-6 groups
Updated
Jul 6, 2026
Pentax's moderate f/2 standard lens offering a balance between aperture speed and lens compactness. The f/2 aperture provides versatility while keeping the lens size reasonable. A capable performer from Pentax's respected optical engineering.
Verdict: The Pentax 50mm f2 is a solid vintage lens option. MFlenses community members recommend it for photographers seeking reliable optical performance with vintage character at affordable prices.
Pleasant bokeh from aperture blade design
Balanced color rendering with neutral to slight warmth
Good sharpness from f4 onwards, improving with stopping down
Moderate flare resistance with acceptable performance
Good contrast with pleasant micro-contrast characteristics
Mild vignetting wide open, reduces by f2.8-f4
Pentax's moderate f/2 standard lens offering a balance between aperture speed and lens compactness. The f/2 aperture provides versatility while keeping the lens size reasonable. A capable performer from Pentax's respected optical engineering.
Pentax's moderate f/2 standard lens offering a balance between aperture speed and lens compactness. The f/2 aperture provides versatility while keeping the lens size reasonable. A capable performer from Pentax's respected optical engineering.