Focus
Manual
Mount
Pentax K
Format
35mm full frame
Weight
236g
Filter Thread
52mm
Length mm
40
Generation
XR Rikenon
Stabilized
No
Diameter mm
63
Max Aperture
f/1.7
Min Focus Distance
45cm
Weather Sealed
No
Aperture Blades
6
Introduced
1981
Focal Length (Max)
50mm
Focal Length (Min)
50mm