M 28/2.8 (version 1)

M 28/2.8 (version 1)

General Description

In 2007 a gold version of this lens was sold on eBay and it looked so professionally done, that at first I assumed that the lens was factory-made. But Pentax has traditionally only made gold versions of its absolute high-end products (which in this case would have been the M28/2), so now I think that the gold version was not made by Pentax.

Product Information
Exact Name smc PENTAX-M 1:2.8 28mm
Color black
Year of Introduction 1977
Catalog Number 22960
Sold with Hood
Sold with Case hard case: smc PENTAX 2.8/28

Technical Specifications

Optical Formula 7 elements in 7 groups
Aperture Range f/2.8 ~ f/22
Number of Aperture Blades 5
Minimum Focusing Distance 0.3 m
Maximum Magnification 0.13 X
Filter Diameter 49 mm
Maximum Diameter 63 mm
Length 31 mm
Weight 156 g
Cap plastic clip-on cap, 49 mm
Fitting Hood(s) clip-on hood: PH-S49
Fitting Case(s) hard case: smc PENTAX 2.8/28