Quick answer
The Laowa 105mm f/2 STF is a short telephoto prime lens covering 105mm at f/2.0 for the Pentax K mount. Its fast maximum aperture helps in dim light and gives good subject separation.
About this lens
This 105mm f/2 fast short-telephoto prime lens from Laowa fits Pentax K mount cameras. The focal length is a classic choice for portraits and details.
Laowa 105mm f/2 STF specifications
What can you shoot with the Laowa 105mm f/2 STF?
At 105mm this is a short telephoto prime, which typically suits:
- Portraits with a flattering perspective
- Events and weddings
- Isolating subjects from the background
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 | 105mm | 19.5° | 23.3° |
| APS-C | 1.5x | 158mm | 13° | 15.6° |
Frequently asked questions
What mount does the Laowa 105mm f/2 STF use?
It uses the Pentax K mount, so it fits Pentax K cameras directly.
What is the focal length of the Laowa 105mm f/2 STF?
It is a fixed 105mm lens with a maximum aperture of f/2.0. That makes it a short telephoto lens.
Is the Laowa 105mm f/2 STF a prime or a zoom lens?
It is a prime lens with a fixed 105mm focal length. Primes usually open wider than zooms; this one opens to f/2.0.
What is the Laowa 105mm f/2 STF equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 158mm on full frame, with a 13° horizontal and 15.6° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Laowa 105mm f/2 STF 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.
