Photo: Marcel Rogge (CC BY-SA 4.0)
Quick answer
The Sigma 24-70mm f/2.8 DG OS HSM Art is a wide-angle to standard zoom lens covering 24-70mm at f/2.8 for the Pentax K mount. Its bright maximum aperture handles indoor and evening light reasonably well.
About this lens
A 24-70mm f/2.8 full-frame fast standard zoom lens, the Sigma 24-70mm f/2.8 DG OS HSM Art is designed for Pentax K mount bodies, from the Sigma Art line with Optical Stabilizer and Hyper Sonic Motor autofocus. A standard zoom from Sigma's Art line with a constant f/2.8 aperture and Optical Stabilizer.
Sigma 24-70mm f/2.8 DG OS HSM Art specifications
- Brand
- Sigma
- Mount
- Pentax K
- Focal length
- 24-70mm
- Maximum aperture
- f/2.8
- Lens type
- Zoom
- Format coverage
- full-frame
- Optical construction
- 19 elements in 14 groups
- Aperture blades
- 9
- Image stabilization
- Yes
- Autofocus motor
- HSM
- Minimum focus distance
- 0.37 m
- Maximum magnification
- 0.21x
- Filter thread
- 82 mm
- Length
- 107.6 mm
- Diameter
- 88 mm
Specification source: sigmaphoto.com
What can you shoot with the Sigma 24-70mm f/2.8 DG OS HSM Art?
At 24-70mm this is a wide-angle to standard zoom, which typically suits:
- Landscapes and cityscapes
- Street and travel photography
- Environmental portraits and interiors
- Everyday and street photography
- Natural-perspective portraits
Its bright maximum aperture handles indoor and evening light reasonably well.
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 | 24–70mm | 28.8–73.7° | 34.3–84.1° |
| APS-C | 1.5x | 36–105mm | 19.5–53.1° | 23.3–62° |
Frequently asked questions
What mount does the Sigma 24-70mm f/2.8 DG OS HSM Art use?
It uses the Pentax K mount, so it fits Pentax K cameras directly.
What is the focal length of the Sigma 24-70mm f/2.8 DG OS HSM Art?
It zooms across 24-70mm with a maximum aperture of f/2.8. That makes it a wide-angle to standard lens.
Is the Sigma 24-70mm f/2.8 DG OS HSM Art a prime or a zoom lens?
It is a zoom lens covering 24-70mm, so you can reframe without moving. Its maximum aperture is f/2.8.
What is the Sigma 24-70mm f/2.8 DG OS HSM Art equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 36–105mm on full frame, with a 19.5–53.1° horizontal and 23.3–62° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Sigma 24-70mm f/2.8 DG OS 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 24-70mm lenses
Browse by focal length: 24mm lenses, 70mm lenses