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K 28-50/3.5-4.5

General Description

Product Information
Exact NameSMC PENTAX ZOOM 1:3.5 28mm~1:4.5 50mm
Years of Production1975 ~ 1977
Availabilityused, once in several years
Catalog Numberunknown
Sold with Hood
Sold with Casededicated hard case: exact name unknown

Technical Specifications

Optical Formula10 elements in 10 groups
Aperture Rangef/3.5 (4.5) ~ f/22 (32)
Number of Aperture Blades6
Minimum Focusing Distance0.55 m
Maximum Magnificationunknown
Filter Diameter52 mm
Maximum Diameter65 mm
Length52 mm
Weight315 g
Capplastic clip-on cap, 52 mm
Fitting Hood(s)clip-on hood: PH-R52
Fitting Case(s)dedicated hard case: exact name unknown