Smc Pentax-FA 50mm F/1.4

Specifications01

MountPENTAX K

Focal length50mm

Max aperturef/1.4

TypePortrait · Prime

Release year1991

Weight220 g

Filter size49 mm

Physical length38 mm

Min focus distance0.45 m

Max magnification0.1499

Aperture blades8

Optical elements7

Groups6

Min aperturef/22

AutofocusYes

StabilizationNo

Aperture controlAperture ring (Manual settings + Auto Exposure setting)

Lens hoodRH-RC49 - Screw-type round PH-SA49 - Clamp-on rectangular

TeleconvertersHD Pentax-DA 1.4X AF Rear Converter AW→ 70mm F/2 Pentax Rear Converter-A 1.4X-S→ 70mm F/2 Pentax Rear Converter-A 2X-S→ 100mm F/2.8

EraFilm era

Production statusDiscontinued

Additional Info02

Lens TypeStandard prime lens

Summary02

Pentax K-mount standard portrait prime with a 50mm focal length and maximum aperture of f/1.4 for low-light and shallow depth-of-field use. Manual/AF behavior depends on the camera body.

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Specifications from thelensdb

Where can this lens be adapted?

The Pentax K mount has a flange distance of 45.46 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work

Pentax DA and FA J lenses have no aperture ring. Use an adapter with its own aperture control.
Pentax DA lenses are made for APS-C.

Sony EAdapter · 27.46 mm
Canon RFAdapter · 25.46 mm
Nikon ZAdapter · 29.46 mm
Fujifilm XAdapter · 27.76 mm
L-MountAdapter · 25.46 mm
Micro Four ThirdsAdapter · 26.21 mm
Fujifilm G (GFX)Adapter · 18.76 mm
Canon EF-MAdapter · 27.46 mm
Canon EFAdapter · 1.46 mm
A rear element that sticks out can hit the camera mirror.