M 2000/13.5 Reflex

M 2000/13.5 Reflex

General Description

The only difference that I am aware of between this lens and its predecessor, the K 2000/13.5, is the "-M" which is part of the official name of this lens. In all other respects the lenses appear to be identical.

Product Information
Exact Name smc PENTAX-M REFLEX 1:13.5 2000mm
Color black
Year of Introduction 1982
Catalog Number 24980
Sold with Hood built-in hood
Sold with Case dedicated trunk: no name

Technical Specifications

Optical Formula 6 elements in 4 groups
Aperture Range f/13.5 ~ f/13.5
Minimum Focusing Distance 20.0 m
Maximum Magnification 0.12 X
Special Features reflex lens
Front-Filter Thread no
Rear-Filter Diameter 52 mm
Maximum Diameter 180 mm
Length 530 mm
Weight 8000 g
Special Features tripod collar
Cap hard leather slip-on cap, 181 mm
Fitting Hood(s) built-in hood
Fitting Case(s) dedicated trunk: no name

Subjective Evaluation

Since I am not aware of any tests of this lens, I cannot make any comments about its optical performance.