120-300mm f/2.8 DG OS HSM Sport
- 120-300mm
- f/2.8
- Telephoto Zoom
- Stabilized
- Min focus 1.5 m
Quick answer
A fast super-telephoto zoom for full-frame DSLRs that covers 120-300mm at a constant f/2.8. It has optical stabilization, HSM focusing and a 105mm front filter thread.
Pros
- Constant f/2.8 across the range
- Optical stabilization
- HSM autofocus
- Zoom flexibility instead of a 300mm prime
Cons
- Very heavy and bulky
- Minimum focus 1.5 m
- 105mm filters are large
Verdict
A strong alternative to a 300mm f/2.8 prime if you value zoom flexibility. Handholding for long periods is demanding.
About this lens
A 120-300mm f/2.8 full-frame fast telephoto zoom lens, the Sigma 120-300mm f/2.8 DG OS HSM Sport is designed for Canon EF mount bodies, from the Sigma Sports line with Optical Stabilizer and Hyper Sonic Motor autofocus. A long-reach telephoto zoom aimed at sports and wildlife.
Sigma 120-300mm f/2.8 DG OS HSM Sport specifications
- Brand
- Sigma
- Mount
- Canon EF
- Focal length
- 120-300mm
- Maximum aperture
- f/2.8
- Lens type
- Telephoto Zoom
- Format coverage
- full-frame
- Optical construction
- 23 elements in 18 groups
- Aperture blades
- 9
- Image stabilization
- Yes
- Autofocus motor
- HSM
- Minimum focus distance
- 1.5 m
- Maximum magnification
- 0.12x
- Filter thread
- 105 mm
- Length
- 291 mm
- Diameter
- 121.4 mm
Specification source: sigmaphoto.com
What can you shoot with the Sigma 120-300mm f/2.8 DG OS HSM Sport?
- Sports photography
- Wildlife at moderate range
- Motorsport and airshows
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 | 120–300mm | 6.9–17.1° | 8.2–20.4° |
| APS-C | 1.6x | 192–480mm | 4.3–10.7° | 5.2–12.9° |
Frequently asked questions
Is the Sigma 120-300mm f/2.8 Sport stabilized?
Yes. It has optical stabilization, which helps with panning and slower shutter speeds.
How does it compare with a 70-200mm f/2.8 plus teleconverter?
The 120-300mm reaches 300mm at f/2.8 without losing light. A 70-200mm f/2.8 with a 2x teleconverter would give 140-400mm at f/5.6.
What is the front filter size of the Sigma 120-300mm f/2.8 Sport?
105mm, which is large, so many users leave a filter off unless a clear protector is needed.
Alternatives for Canon EF from other brands
All Canon EF lensesSame mount, overlapping focal range, closest maximum aperture first.
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