A 28/2.8

A 28/2.8

General Description

Product Information
Exact Name smc PENTAX-A 1:2.8 28mm
Color black
Year of Introduction 1984
Catalog Number 22997
Sold with Hood
Sold with Case hard case: HA-90B

Technical Specifications

Optics
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
Mechanics
Filter Diameter 49 mm
Maximum Diameter 63 mm
Length 37 mm
Weight 170 g
Accessories
Cap plastic clip-on cap, 49 mm
Fitting Hood(s) clip-on hood: PH-S49
Fitting Case(s) hard case: HA-90B