This is an in-depth review of the Sigma 120-300mm f/2.8 DG OS HSM Sport, a high-end super telephoto lens with a versatile zoom range and a wide constant aperture of f/2.8, designed for wildlife, sports and portrait photographers. This is the third iteration of the lens.

The Sigma 120-300mm f/2.8 DG OS HSM Sports Lens is a physically beautiful lens that delivers also-beautiful image quality even with a wide open aperture. Remarkable is that this lens has the widest max aperture available in any 300mm lens (f/2.8), but still offers a significant 120-300mm zoom...

This 2.5x zoom lens sports a constant f/2.8 maximum aperture, silent focusing and optical stabilisation. It slots into Sigma's 'Sports' range of lenses and is especially interesting as the zoom range is similar to that of a 70-200mm lens with a 1.4x teleconverter fitted, whilst maintaining a fast...

This lens is a significant improvement over the previous versions and well worth the upgrade. I concur with the findings of the review here, and add that the AF operation can be improved significantly with use of the USB dock.

Perfect lens for sports photography

None

I use this lens to acquire candid shots of people, for wildlife and for plants, such as flowers, that are too far away for my close-up lens. I read many reviews before purchasing the lens and I agree with the conclusions: 1) the optics are excellent, especially for the money.

Monster size, weight and performance. for the cost of a used canon 300 2.8 prime in excellent shape I bought this instead. much more versatile. However its also heavier than the canon. I'm using this 95% for video on a C300 mk2 FWIW. The AF for video generally works very well.

Gary Wolstenholme reviews the Sigma 120-300mm f/2.8 DG OS HSM telephoto zoom lens.

Good sharpness throughout the range; Low CA; Excellent build; Optical stabilisation; Fast focusing; Very good value for money

Variable close focusing distance

fantastic build quality if a little heavy

Consistent Output; Durable; Rugged; Sharp Focus; Strong Construction

Take it you've all heard of how heavy this lens is, and yes it's heavy. But who's bothered I know I'm not. Stick it on a good tripod or monopod, and let the fun begin. This lens is awesome.

This 3390g behemoth of a lens fits snugly into Sigma's Sport line of glass and is designed to be mounted to a tripod rather than hand-held. This leads it to be rather more specialist than many lenses in test, though doesn't detract from its image quality.