Sigma 120-300mm F2.8 DG OS HSM is a Fixed aperture Auto Focus (AF)
Telephoto Zoom lens with Optical Image stabilization and 35mm FF max sensor coverage, and it is designed to be used with
EF Mount cameras.
The Sigma 120-300mm F2.8 DG OS HSM is also available in the Sigma SA and Nikon F (FX) mounts.
What type of photography is the Sigma 120-300mm F2.8 DG OS HSM lens good for?
The choice of photography type for which you intend to use the Sigma 120-300mm F2.8 DG OS HSM is a crucial decision factor. Below, we have assessed its suitability for various photography scenarios:
There are 2 more lenses that have the same focal range and aperture values with the Sigma 120-300mm F2.8 DG OS HSM that are compatible with the Canon EF mount, you can find the review and comparison links of these lenses below.
Lenses in Canon EF Mount with Same Focal and Aperture Range
Reasons to Buy the Sigma 120-300mm F2.8 DG OS HSM Lens
Here we've included a summary of the advantages and disadvantages of the Sigma 120-300mm F2.8 DG OS HSM lens in a list form to assist you in determining whether it offers the features you need.
| Optical Image Stabilization |
| Weather-sealed |
| Autofocus |
| Compatible with Sigma Teleconverters |
| Tripod Collar |
| Fast Aperture at Wide end |
| Fast Aperture at Tele end |
| Constant f2.8 aperture throughout the range |
| Covers Full-Frame Sensor |
| 9 Diaphragm Blades for Smooth Bokeh |
Report a correction
Buy Sigma 120-300mm F2.8 DG OS HSM from Amazon or B&H PHOTO
| Lens Extends while zooming |
| Heavy |
| Pricey |
Lens Mount
Sigma 120-300mm F2.8 DG OS HSM is compatible with cameras that have a Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K.
Size, Weight and Filter Thread
The size and weight are crucial factors to consider when searching for your next lens. Sigma 120-300mm F2.8 DG OS HSM has a maximum diameter of 124mm and a total length of 291mm. It weighs 2950g / 104.1 oz.
Sigma 120-300mm F2.8 DG OS HSM has a filter thread of 105mm. Below are links to the filters that we recommend you to consider for your Sigma 120-300mm F2.8 DG OS HSM:
You can also check All Canon EF Mount Lenses with 105mm Filter Thread Size to find the matching lenses.
Focal Range
Sigma 120-300mm F2.8 DG OS HSM has a focal range of 120-300mm and 2.5X zoom ratio. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides an 35mm (FF) equivalent of 192 - 480mm.
Teleconverter Compatibility
Sigma 120-300mm F2.8 DG OS HSM is compatible with the Teleconverters below. With the use of these TC/extenders, you can find how the total focal reach and effective aperture of your Sigma 120-300mm F2.8 DG OS HSM changes below:
Sigma 120-300mm F2.8 DG OS HSM Focal Range and Aperture Change with Teleconverter
Weather Sealings
The Sigma 120-300mm F2.8 DG OS HSM is a weather-sealed lens, which provides extra protection to prevent water and dust get inside the lens and camera body under light rain, snow and wind. In order to have effective protection, you have to pair the Sigma 120-300mm F2.8 DG OS HSM with a weather-sealed camera body such as the Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Optical Image Stabilization
The Sigma 120-300mm F2.8 DG OS HSM features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.
Tripod Collar
With a total length of 291mm and a weight of 2950g, the Sigma 120-300mm F2.8 DG OS HSM is a large lens. Fortunately, it comes with a tripod collar which you can use to attach the lens directly to a tripod or monopod instead of attaching the camera. This connection helps to better balance the lens/kit combination.
Below are the 3 Telephoto Zoom type Canon12 mount lens alternatives with highest max magnification ratios:
Aperture
Sigma 120-300mm F2.8 DG OS HSM is a fixed aperture lens with a constant max aperture of f2.8 from 120mm all the way to the 300mm .
| Focal Length |
Max Aperture |
Min Aperture |
|
120mm
|
F2.8 |
F22 |
|
300mm
|
F2.8 |
F22 |
Optical Formula
Sigma 120-300mm F2.8 DG OS HSM's optical formula consists of 23 elements in 18 groups .
Popular Comparisons of Sigma 120-300mm F2.8 DG OS HSM
Here are the 8 most popular comparisons of the Sigma 120-300mm F2.8 DG OS HSM amongst Camera Decision readers.
Top Alternatives of Sigma 120-300mm F2.8 DG OS HSM Lens
In addition, it would be interesting to check which lenses from other mounts are most commonly compared with the Sigma 120-300mm F2.8 DG OS HSM.
Top Alternatives of Sigma 120-300mm F2.8 DG OS HSM in Other Lens Mounts
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate, I earn from qualifying purchases.
