Quick answer
The Sigma 24-135mm f/2.8-4.5 DG is a wide-angle to short telephoto zoom lens covering 24-135mm at f/2.8 for the Sigma SA mount. Its bright maximum aperture handles indoor and evening light reasonably well.
About this lens
Sigma 24-135mm f/2.8-4.5 DG: a full-frame superzoom lens with a 24-135mm focal length and a maximum aperture of f/2.8-4.5, made for Sigma SA mount cameras. The wide-to-tele range makes it a one-lens option for travel and everyday shooting.
Sigma 24-135mm f/2.8-4.5 DG specifications
What can you shoot with the Sigma 24-135mm f/2.8-4.5 DG?
At 24-135mm this is a wide-angle to short telephoto 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 | 24–135mm | 15.2–73.7° | 18.2–84.1° |
| APS-C | 1.5x | 36–203mm | 10.2–53.1° | 12.2–62° |
Frequently asked questions
What mount does the Sigma 24-135mm f/2.8-4.5 DG use?
It uses the Sigma SA mount, so it fits Sigma SA cameras directly.
What is the focal length of the Sigma 24-135mm f/2.8-4.5 DG?
It zooms across 24-135mm with a maximum aperture of f/2.8. That makes it a wide-angle to short telephoto lens.
Is the Sigma 24-135mm f/2.8-4.5 DG a prime or a zoom lens?
It is a zoom lens covering 24-135mm, so you can reframe without moving. Its maximum aperture is f/2.8.
What is the Sigma 24-135mm f/2.8-4.5 DG equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 36–203mm on full frame, with a 10.2–53.1° horizontal and 12.2–62° diagonal field of view. These figures are calculated from the focal length and crop factor.
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