Photo: Hustvedt (CC BY-SA 3.0)
smc FA 50mm F1.4
- 50mm
- f/1.4
- Prime
- 220 g
- Min focus 0.45 m
Affiliate link: we may earn a commission on qualifying purchases at no extra cost to you.
Quick answer
A compact 50mm f/1.4 for Pentax K-mount that covers full frame. It weighs about 220 g and takes 49mm filters.
Pros
- f/1.4 aperture
- Light at about 220 g
- Full-frame coverage
- 49mm filters
Cons
- Soft wide open
- Screw-drive autofocus
- Not weather sealed
Verdict
A small, bright normal lens for Pentax.
About this lens
A 50mm f/1.4 fast standard prime lens, the Pentax smc FA 50mm F1.4 is designed for Pentax K mount bodies. The natural field of view suits street, documentary and everyday photography.
Pentax smc FA 50mm F1.4 specifications
- Brand
- Pentax
- Mount
- Pentax K
- Focal length
- 50mm
- Maximum aperture
- f/1.4
- Lens type
- Prime
- Minimum focus distance
- 0.45 m
- Filter thread
- 49 mm
- Weight
- 220 g
- Length
- 38 mm
- Diameter
- 64 mm
Specification source: wikidata.org
What can you shoot with the Pentax smc FA 50mm F1.4?
- Low-light shooting
- Portraits
- Everyday use
Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 50mm | 39.6° | 46.8° |
| APS-C | 1.5x | 75mm | 27° | 32.2° |
Frequently asked questions
What filter size does the Pentax smc FA 50mm F1.4 use?
It takes 49mm filters. Buy that size and they mount directly with no step ring.
How close can it focus?
Minimum focus is 0.45 m. That works for detail shots and small subjects, though it is not a dedicated macro unless stated.
How heavy is it?
About 220 g, with a length of roughly 38 mm.
Alternatives for Pentax K from other brands
All Pentax K lensesSame mount, overlapping focal range, closest maximum aperture first.
