About Authors Changes Copyright Index References To Do WWW
Bodies Flashes Lenses Miscellaneous Power Technology Teleconverters
K 150/4

General Description

All Pentax sources report the wrong weight for this lens (338 g), but weighing an actual sample shows the real weight — 373 g.

Product Information
Exact NameSMC PENTAX 1:4/150
Years of Production1975 ~ 1977
Availabilityused, several times a year
Catalog Number23740
Sold with Hoodclip-on hood: PH-R52
Sold with Casededicated hard case: exact name unknown

Technical Specifications

Optical Formula5 elements in 5 groups
Aperture Rangef/4 ~ f/32
Number of Aperture Blades6
Minimum Focusing Distance1.8 m
Maximum Magnificationunknown
Filter Diameter52 mm
Maximum Diameter63 mm
Length96 mm
Weight373 g
Capplastic clip-on cap, 52 mm
Fitting Hood(s)clip-on hood: PH-R52
Fitting Case(s)dedicated hard case: exact name unknown