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A 20/2.8

General Description

Product Information
Exact Namesmc PENTAX-A 1:2.8 20mm
Colorblack
Years of Production1985 ~ 2001
Availabilityused, several times a year
Sales Variations
Catalog Number2287022875
Sold with Hood
Sold with Casehard case: HD-100

Technical Specifications

Optics
Optical Formula10 elements in 9 groups
Aperture Rangef/2.8 ~ f/22
Number of Aperture Blades5
Minimum Focusing Distance0.25 m
Maximum Magnification0.12 X
Mechanics
Filter Diameter67 mm
Maximum Diameter70 mm
Length43.5 mm
Weight245 g
Accessories
Capplastic clip-on cap, 67 mm
Fitting Hood(s)screw-on hood: MH-RB67
Fitting Case(s)hard case: HD-100