N°101178 · Family detail
PentaxWide·PENTAX K mount·1983
Smc Pentax-A 28mm F/2.8
Specifications01
MountPENTAX K
Focal length28mm
Max aperturef/2.8
TypeWide · Prime
Release year1983
Weight170 g
Filter size49 mm
Min focus distance0.3 m
Max magnification0.1299
Aperture blades5
Optical elements7
Groups7
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodPH-S49 - Clamp-on rectangular
TeleconvertersPentax Rear Converter-A 1.4X-S→ 39.2mm F/3.9
Pentax Rear Converter-A 2X-S→ 56mm F/5.6
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeWide-angle prime lens
Field Notes02
Pentax K-mount 28mm prime lens with a maximum aperture of f/2.8, suited for general wide-angle photography and low-light use on APS-C or full-frame Pentax K bodies (as applicable).
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Other Mounts03
No alternate mounts are indexed for this family yet.