Sigma Canon EF mount Telephoto Zoom
Sigma 120-400mm f/4.5-5.6 APO DG OS HSM
Quick answer
The Sigma 120-400mm f/4.5-5.6 APO DG OS HSM is a short telephoto to super telephoto telephoto zoom lens covering 120-400mm at f/4.5 for the Canon EF mount. Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
- Full frame
- APS-C (192–640mm equiv.)
- 23 Canon EF cameras
- Focal
- 120–400mm
- Aperture
- f/4.5–22
- Filter
- 77mm
- Min focus
- 1.5m
- AF motor
- HSM
What 120-400mm sees
- Full frame crop 1.0×
- 6.2–20.4° 5.2–17.1° horizontal
- APS-C crop 1.6× → 192–640mm
- 3.9–12.9° 3.2–10.7° horizontal
Diagonal angle of view. Frames drawn to scale at 120mm (and 400mm). Calculated from the focal length and crop factor, not measured.
Open the field-of-view calculatorSigma 120-400mm f/4.5-5.6 APO DG OS HSM specifications
Optics
- Focal length
- 120-400mm
- Maximum aperture
- f/4.5
- Minimum aperture
- f/22
- Format coverage
- Full frame
- Optical construction
- 21 elements in 15 groups
- Aperture blades
- 9
- Image stabilization
- Yes
Focus
- Autofocus motor
- HSM
- Minimum focus distance
- 1.5 m
- Maximum magnification
- 0.24×
Physical
- Filter thread
- 77 mm
General
- Brand
- Sigma
- Mount
- Canon EF
- Lens type
- Telephoto Zoom
Specification source: sigma-global.com
What can you shoot with the Sigma 120-400mm f/4.5-5.6 APO DG OS HSM?
At 120-400mm this is a short telephoto to super telephoto telephoto zoom, which typically suits:
- Portraits with a flattering perspective
- Events and weddings
- Isolating subjects from the background
- Sports and action
- Wildlife and birds at moderate distance
Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
Frequently asked questions
What mount does the Sigma 120-400mm f/4.5-5.6 APO DG OS HSM use?
It uses the Canon EF mount, so it fits Canon EF cameras directly.
What is the focal length of the Sigma 120-400mm f/4.5-5.6 APO DG OS HSM?
It zooms across 120-400mm with a maximum aperture of f/4.5. That makes it a short telephoto to super telephoto lens.
Is the Sigma 120-400mm f/4.5-5.6 APO DG OS HSM a prime or a zoom lens?
It is a zoom lens covering 120-400mm, so you can reframe without moving. Its maximum aperture is f/4.5.
What is the Sigma 120-400mm f/4.5-5.6 APO DG OS HSM equivalent on a crop sensor?
On APS-C (1.6x crop) it frames like 192–640mm on full frame, with a 3.2–10.7° horizontal and 3.9–12.9° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Sigma 120-400mm f/4.5-5.6 APO DG OS HSM fit?
Any Canon EF-mount camera, including Canon EOS 1D C, Canon EOS 1D X, Canon EOS 5D, Canon EOS 5D Mark II, and Canon EOS 5D Mark III and 18 more.
Alternatives for Canon EF from other brands
All Canon EF lensesSame mount, overlapping focal range, closest maximum aperture first.
More Sigma lenses for Canon EF
All Sigma lenses
Other 120-400mm lenses
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