N°101609 · Family detail
PentaxWide·PENTAX K mount·1987
Smc Pentax-F 28mm F/2.8
Specifications01
MountPENTAX K
Focal length28mm
Max aperturef/2.8
TypeWide · Prime
Release year1987
Weight180 g
Filter size49 mm
Min focus distance0.3 m
Max magnification0.1299
Aperture blades5
Optical elements7
Groups7
AutofocusYes
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 fixed f/2.8 maximum aperture, intended for general wide-angle photography such as street, environmental portraits, and landscapes. Suitable for everyday use in varied light.
AI-assisted summary — verify against linked sources
Other Mounts03
No alternate mounts are indexed for this family yet.