smc PENTAX-FA 50mm F1.4 Classic

smc PENTAX-FA 50mm F1.4 Classic

Professional prime lens with bright aperture, weather sealing for Portrait, street, low-light photography.

Standard prime lens f/1.4
Portrait
Portrait
Street
Street

Lens Review: smc PENTAX-FA 50mm F1.4 Classic

The smc PENTAX-FA 50mm F1.4 Classic is a standard prime lens designed for full-frame Pentax K-mount cameras. This lens offers a bright f/1.4 maximum aperture, making it ideal for low-light conditions and providing excellent depth-of-field control for portrait and street photography. Its optical design, featuring 7 elements in 6 groups, delivers unique image characteristics reminiscent of vintage lenses, including a distinctive rainbow flare effect when shooting wide open against strong backlight. The lens maintains a compact and lightweight form factor, enhancing portability for everyday use. While it lacks modern weather sealing, it includes an aperture ring, allowing compatibility with a wide range of Pentax cameras, including older film models.

Specifications

Lens type
Standard prime lens
Max Format size
Full Frame
Focal length
50 mm
Image stabilization
No
Lens mount
Pentax KAF
Maximum aperture
f/1.4
Minimum aperture
f/22
Aperture ring
Yes
Number of diaphragm blades
8 (rounded from f/1.4 to f/2.8)
Optical construction
7 elements in 6 groups
Minimum focusing distance
0.45 m (1.48 ft)
Maximum magnification
0.15x
Filter size
49 mm
Dimensions
65 mm (diameter) x 37 mm (length)
Weight
216 g (7.6 oz)
Weather sealing
No
Usage
Portrait, street, low-light photography

Video Reviews

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Sample Images

BWE- 2647- At Lydie's

BWE- 2647- At Lydie's

by egoteabs

by el zopilote

250712-36

250712-36

by Jaihutan

IMGP3045

IMGP3045

by mmichael197182

My photography books

My photography books

by Bohdan Bobrowski

Doors on Kozia street in PoznaƄ

Doors on Kozia street in PoznaƄ

by Bohdan Bobrowski

Traces of war in the Citadel cemetery in PoznaƄ

Traces of war in the Citadel cemetery in PoznaƄ

by Bohdan Bobrowski

Sign

Sign

by Bohdan Bobrowski

Hello

Hello

by Bohdan Bobrowski

IMGP9946.jpg

IMGP9946.jpg

by peter_jdh

IMGP0765-100-2025.jpg

IMGP0765-100-2025.jpg

by TOF TOF

Coffee Place

Coffee Place

by __stuart__

Entry

Entry

by __stuart__

250104-2

250104-2

by Jaihutan

IMGP2320 (1)

IMGP2320 (1)

by mmichael197182

IMGP2432 (1)

IMGP2432 (1)

by mmichael197182

PSX_20250222_120457

PSX_20250222_120457

by mmichael197182

Classic car (?) - film photo

Classic car (?) - film photo

by Senkawa Scott

Cold evening in Atelier Wimar

Cold evening in Atelier Wimar

by Bohdan Bobrowski

Cold evening in Atelier Wimar

Cold evening in Atelier Wimar

by Bohdan Bobrowski