Quick answer
The Pentax smc Pentax-FA 43mm f/1.9 Limited is a standard prime lens covering 43mm at f/1.9 for the Pentax K mount. Its fast maximum aperture helps in dim light and gives good subject separation.
About this lens
Pentax smc Pentax-FA 43mm f/1.9 Limited: a fast standard prime lens with a 43mm focal length and a maximum aperture of f/1.9, made for Pentax K mount cameras. A compact, metal-bodied Limited-series prime for Pentax K-mount cameras.
Pentax smc Pentax-FA 43mm f/1.9 Limited specifications
What can you shoot with the Pentax smc Pentax-FA 43mm f/1.9 Limited?
At 43mm this is a standard prime, which typically suits:
- Everyday and street photography
- Natural-perspective portraits
- Documentary and travel work
Its fast maximum aperture helps in dim light and gives good subject separation.
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 | 43mm | 45.4° | 53.4° |
| APS-C | 1.5x | 65mm | 31.2° | 37.1° |
Frequently asked questions
What mount does the Pentax smc Pentax-FA 43mm f/1.9 Limited use?
It uses the Pentax K mount, so it fits Pentax K cameras directly.
What is the focal length of the Pentax smc Pentax-FA 43mm f/1.9 Limited?
It is a fixed 43mm lens with a maximum aperture of f/1.9. That makes it a standard lens.
Is the Pentax smc Pentax-FA 43mm f/1.9 Limited a prime or a zoom lens?
It is a prime lens with a fixed 43mm focal length. Primes usually open wider than zooms; this one opens to f/1.9.
What is the Pentax smc Pentax-FA 43mm f/1.9 Limited equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 65mm on full frame, with a 31.2° horizontal and 37.1° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Pentax smc Pentax-FA 43mm f/1.9 Limited fit?
Any Pentax K-mount camera, including Pentax K-1, Pentax K-3, Pentax K-3 II, Pentax K-3 Mark III, and Pentax K-30 and 15 more.
Alternatives for Pentax K from other brands
All Pentax K lensesSame mount, overlapping focal range, closest maximum aperture first.
