N°92257 · Family detail
PentaxPortrait·PENTAX K mount·1991
Smc Pentax-FA 50mm F/1.7
Specifications01
MountPENTAX K
Focal length50mm
Max aperturef/1.7
TypePortrait · Prime
Release year1991
Weight170 g
Filter size49 mm
Min focus distance0.45 m
Max magnification0.1499
Aperture blades6
Optical elements6
Groups5
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodRH-RC49 - Screw-type round
PH-SA49 - Clamp-on round
TeleconvertersPentax Rear Converter-A 1.4X-S→ 70mm F/2.4
Pentax Rear Converter-A 2X-S→ 100mm F/3.4
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeStandard prime lens
Field Notes02
SMC Pentax-FA 50mm is a fixed 50mm prime lens for the Pentax K mount, with a maximum aperture of f/1.7 for low-light and shallow depth of field use.
AI-assisted summary — verify against linked sources
Other Mounts03
No alternate mounts are indexed for this family yet.