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K 45-125/4

General Description

The newer of the two lenses has an additional distance scale (engraved on the focus ring) which is applicable when a close-up lens is attached. Furthermore, the dedicated lens case for that lens has a separate compartment for a close-up lens. I do not know if the close-up lens is a dedicated one and if was sold separately or with the lens itself...

Product Variations
Exact NameSMC PENTAX ZOOM 1:4/45~125smc PENTAX ZOOM 1:4 45~125mm
Colorblackblack
Years of Production1975 ~ 19771977 ~ 1984
Availabilityused, several times a yearused, several times a year
Catalog Number2774027740
Sold with Hood
Sold with Casehard case: SMC PENTAX 4/45~125hard case: SMC PENTAX 4/45~125

Technical Specifications

Optics
Optical Formula14 elements in 11 groups
Aperture Rangef/4 ~ f/22
Number of Aperture Blades6
Minimum Focusing Distance1.5 m
Maximum Magnificationunknown
Mechanics
Filter Diameter58 mm
Maximum Diameter69 mm
Length127 mm
Weight615 g
Accessories
Capplastic clip-on cap, 58 mm
Fitting Hood(s)screw-on hood: MH-R (2 piece)
Fitting Case(s)hard case: SMC PENTAX 4/45~125