Quick answer
The Sigma 50-100mm f/1.8 DC HSM Art is a standard to short telephoto zoom lens covering 50-100mm at f/1.8 for the Pentax K mount. Its fast maximum aperture helps in dim light and gives good subject separation.
About this lens
This 50-100mm f/1.8 APS-C fast short-telephoto zoom lens from Sigma fits Pentax K mount cameras, from the Sigma Art line with Hyper Sonic Motor autofocus. A long-reach telephoto zoom aimed at sports and wildlife.
Sigma 50-100mm f/1.8 DC HSM Art specifications
- Brand
- Sigma
- Mount
- Pentax K
- Focal length
- 50-100mm
- Maximum aperture
- f/1.8
- Lens type
- Zoom
- Format coverage
- aps-c
- Optical construction
- 21 elements in 15 groups
- Aperture blades
- 9
- Autofocus motor
- HSM
- Minimum focus distance
- 0.95 m
- Maximum magnification
- 0.15x
- Filter thread
- 82 mm
- Length
- 170.7 mm
- Diameter
- 93.5 mm
Specification source: sigmaphoto.com
What can you shoot with the Sigma 50-100mm f/1.8 DC HSM Art?
At 50-100mm this is a standard to short telephoto zoom, which typically suits:
- Everyday and street photography
- Natural-perspective portraits
- Documentary and travel work
- Portraits with a flattering perspective
- Events and weddings
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 |
|---|---|---|---|---|
| APS-C | 1.5x | 75–150mm | 13.7–27° | 16.4–32.2° |
Frequently asked questions
What mount does the Sigma 50-100mm f/1.8 DC HSM Art use?
It uses the Pentax K mount, so it fits Pentax K cameras directly.
What is the focal length of the Sigma 50-100mm f/1.8 DC HSM Art?
It zooms across 50-100mm with a maximum aperture of f/1.8. That makes it a standard to short telephoto lens.
Is the Sigma 50-100mm f/1.8 DC HSM Art a prime or a zoom lens?
It is a zoom lens covering 50-100mm, so you can reframe without moving. Its maximum aperture is f/1.8.
What is the Sigma 50-100mm f/1.8 DC HSM Art equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 75–150mm on full frame, with a 13.7–27° horizontal and 16.4–32.2° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Sigma 50-100mm f/1.8 DC HSM Art 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.
More Sigma lenses for Pentax K
All Sigma lenses
Other 50-100mm lenses
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