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M 28/3.5

General Description

Product Information
Exact Namesmc PENTAX-M 1:3.5 28mm
Years of Production1977 ~ 1985
Availabilityused, several times a year
Catalog Number22570
Sold with Hood
Sold with Casehard case: smc PENTAX 3.5/28

Technical Specifications

Optical Formula6 elements in 6 groups
Aperture Rangef/3.5 ~ f/22
Number of Aperture Blades5
Minimum Focusing Distance0.3 m
Maximum Magnification0.13 X
Filter Diameter49 mm
Maximum Diameter63 mm
Length32 mm
Weight180 g
Capplastic clip-on cap, 49 mm
Fitting Hood(s)clip-on hood: PH-S49
Fitting Case(s)hard case: smc PENTAX 3.5/28