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K 50/4 Macro

General Description

Product Information
Exact NameSMC PENTAX MACRO 1:4/50
Years of Production1975 ~ 1977
Availabilityused, once in several years
Catalog Number28140
Sold with Hood
Sold with Casededicated hard case: exact name unknown

Technical Specifications

Optical Formula4 elements in 3 groups
Aperture Rangef/4 ~ f/32
Number of Aperture Blades5
Minimum Focusing Distance0.23 m
Maximum Magnification0.5 X
Special Featuresmacro lens
Filter Diameter52 mm
Maximum Diameter63 mm
Length54 mm
Weight241 g
Capplastic clip-on cap, 52 mm
Fitting Hood(s)no hood required
Fitting Case(s)dedicated hard case: exact name unknown