Quick answer
The Sigma 800mm f/5.6 APO EX DG HSM is a super telephoto telephoto lens covering 800mm at f/5.6 for the Canon EF mount. Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
About this lens
A 800mm f/5.6 full-frame telephoto prime lens, the Sigma 800mm f/5.6 APO EX DG HSM is designed for Canon EF mount bodies, with Hyper Sonic Motor autofocus and apochromatic correction. It brings distant subjects closer for sports, wildlife and events.
Sigma 800mm f/5.6 APO EX DG HSM specifications
What can you shoot with the Sigma 800mm f/5.6 APO EX DG HSM?
At 800mm this is a super telephoto telephoto, 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 | 800mm | 2.6° | 3.1° |
| APS-C | 1.6x | 1280mm | 1.6° | 1.9° |
Frequently asked questions
What mount does the Sigma 800mm f/5.6 APO EX DG HSM use?
It uses the Canon EF mount, so it fits Canon EF cameras directly.
What is the focal length of the Sigma 800mm f/5.6 APO EX DG HSM?
It is a fixed 800mm lens with a maximum aperture of f/5.6. That makes it a super telephoto lens.
Is the Sigma 800mm f/5.6 APO EX DG HSM a prime or a zoom lens?
It is a prime lens with a fixed 800mm focal length. Primes usually open wider than zooms; this one opens to f/5.6.
What is the Sigma 800mm f/5.6 APO EX DG HSM equivalent on a crop sensor?
On APS-C (1.6x crop) it frames like 1280mm on full frame, with a 1.6° horizontal and 1.9° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Sigma 800mm f/5.6 APO EX DG HSM fit?
Any Canon EF-mount camera, including Canon EOS 1D X, Canon EOS 5D, Canon EOS 5D Mark II, Canon EOS 5D Mark III, and Canon EOS 5D Mark IV and 7 more.
Alternatives for Canon EF from other brands
All Canon EF lensesSame mount, overlapping focal range, closest maximum aperture first.
