Quick answer
The Sigma 1000mm f/13.5 Mirror is a super telephoto mirror lens covering 1000mm at f/13.5 for the Sigma SA mount. Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
About this lens
Sigma 1000mm f/13.5 Mirror: a mirror telephoto lens with a 1000mm focal length and a maximum aperture of f/13.5, made for Sigma SA mount cameras. Its catadioptric design keeps a long focal length compact and light.
Sigma 1000mm f/13.5 Mirror specifications
What can you shoot with the Sigma 1000mm f/13.5 Mirror?
At 1000mm this is a super telephoto mirror, which typically suits:
- Wildlife and birds
- Motorsport and field sports
- Distant subjects and the moon
Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
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 | 1000mm | 2.1° | 2.5° |
| APS-C | 1.5x | 1500mm | 1.4° | 1.7° |
Frequently asked questions
What mount does the Sigma 1000mm f/13.5 Mirror use?
It uses the Sigma SA mount, so it fits Sigma SA cameras directly.
What is the focal length of the Sigma 1000mm f/13.5 Mirror?
It is a fixed 1000mm lens with a maximum aperture of f/13.5. That makes it a super telephoto lens.
Is the Sigma 1000mm f/13.5 Mirror a prime or a zoom lens?
It is a prime lens with a fixed 1000mm focal length. Primes usually open wider than zooms; this one opens to f/13.5.
What is the Sigma 1000mm f/13.5 Mirror equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 1500mm on full frame, with a 1.4° horizontal and 1.7° diagonal field of view. These figures are calculated from the focal length and crop factor.