Photo: Thilo Parg (CC BY-SA 3.0)
Quick answer
The Sigma 10mm f/2.8 EX DC Fisheye HSM is a ultra-wide fisheye lens covering 10mm at f/2.8 for the Sigma SA mount. Its bright maximum aperture handles indoor and evening light reasonably well.
About this lens
This 10mm f/2.8 APS-C fisheye lens from Sigma fits Sigma SA mount cameras, with Hyper Sonic Motor autofocus. It suits dramatic perspectives, astrophotography and creative wide-field work.
Sigma 10mm f/2.8 EX DC Fisheye HSM specifications
What can you shoot with the Sigma 10mm f/2.8 EX DC Fisheye HSM?
At 10mm this is a ultra-wide fisheye, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
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 | 10mm | 121.9° | 130.4° |
| APS-C | 1.5x | 15mm | 100.4° | 110.5° |
Frequently asked questions
What mount does the Sigma 10mm f/2.8 EX DC Fisheye HSM use?
It uses the Sigma SA mount, so it fits Sigma SA cameras directly.
What is the focal length of the Sigma 10mm f/2.8 EX DC Fisheye HSM?
It is a fixed 10mm lens with a maximum aperture of f/2.8. That makes it a ultra-wide lens.
Is the Sigma 10mm f/2.8 EX DC Fisheye HSM a prime or a zoom lens?
It is a prime lens with a fixed 10mm focal length. Primes usually open wider than zooms; this one opens to f/2.8.
What is the Sigma 10mm f/2.8 EX DC Fisheye HSM equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 15mm on full frame, with a 100.4° horizontal and 110.5° diagonal field of view. These figures are calculated from the focal length and crop factor.
