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K 18/3.5

General Description

Product Variations
Exact NameSMC PENTAX 1:3.5/18smc PENTAX 1:3.5 18mm
Years of Production1975 ~ 19771977 ~ 1985
Availabilityused, once in several yearsused, once in several years
Catalog Number2216022160
Sold with Hood
Sold with Casehard case: SMC PENTAX 3.5/18hard case: SMC PENTAX 3.5/18

Technical Specifications

Optical Formula12 elements in 11 groups
Aperture Rangef/3.5 ~ f/22
Number of Aperture Blades5
Minimum Focusing Distance0.25 m
Maximum Magnificationunknown
Filter Diameter58 mm
Built-in FiltersCloudy, Skylight, Y48 (Y2), O56 (O2)
Gelatine-Filter Holderyes
Maximum Diameter63 mm
Length62 mm
Weight295 g
Capplastic clip-on cap, 58 mm
Fitting Hood(s)clip-on hood: PH-S58
Fitting Case(s)hard case: SMC PENTAX 3.5/18