N°100042 · Family detail
PentaxWide·PENTAX K mount·1995
Smc Pentax-FA 20mm F/2.8
Specifications01
MountPENTAX K
Focal length20mm
Max aperturef/2.8
TypeWide · Prime
Release year1995
Weight255 g
Filter size67 mm
Min focus distance0.25 m
Aperture blades6
Optical elements10
Groups9
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodMH-RB67 - Screw-type round
TeleconvertersPentax Rear Converter-A 1.4X-S→ 28mm F/3.9
Pentax Rear Converter-A 2X-S→ 40mm F/5.6
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeUltra-wide angle prime lens
Field Notes02
Pentax K-mount 20mm prime lens with a maximum aperture of f/2.8. Designed for wide-angle use such as landscape, architecture, and general low-light photography.
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Other Mounts03
No alternate mounts are indexed for this family yet.