Following in the footsteps of Sigma’s full-frame 12-24mm DG zoom, the 10-20mm DC version has a lot to live up to. What Digital Camera's Sigma 10-20mm EX DC HSM review sees if it lives up to the hype...

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  Good all-round performance

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  Nothing really!

A wide-angle zoom is definitely the way to go when photographing in this type of situation, whether it’s a car show, antique show, or anywhere that’s crowded or the subject is large, such as architecture.

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  Quality; true cost of lens; construction

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  Distortion at widest angles

The well-built Sigma 10-20mm f/3.5 EX DC HSM Lens, at review time, is one of only a few lenses in the ultra-wide angle APS-C lens class to have a fixed maximum aperture. While f/3.5 is not what I typically consider wide/fast, the fixed maximum aperture allows a constant wide open aperture exposure...

With a brighter f/3.5 aperture, the new Sigma 10-20mm lens will be better for low-light photographers. Priced at £440, does the new lens warrant the price tag?

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  Very good resolution, Good build quality, Excellent value, Low levels of Chromatic Aberrations

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  82mm filter size, Stiff manual focus ring

Sigma's widest nonfisheye and fastest ultrawide zoom, the constant-aperture 10-20mm f/3.5 belongs to the EX family of sturdily built, optically gifted Sigmas. To control multiple forms of aberration, it uses three low-dispersion glass elements and four aspheric elements-the most of any Sigma.

Sigma has made some dramatic improvements in this constant-aperture version of the 10-20mm lens, and has made them where they count: at the 10mm end of the focal length spectrum, where (arguably) the majority will probably use this lens.

Once the APS-C crop factor has been taken into consideration, the lens offers an effective focal range of 15-30mm.

This Sigma wide-angle comes in at a very reasonable price for what it is and for its features. It’s also available for plenty of lens mounts. This lens is considered by some photographers as the benchmark for APS-C wide-angles, though our tests suggest this may not now be the case.

The new Sigma 10-20 mm f/3.5 EX DC HSM leaves us with mixed feelings. The build quality of the lens is certainly excellent, distortion is a little high at the wide end (but excellent for the rest of the zoom range), there's also a fair amount of vignetting and CA, but that's typical for this lens...

Sigma's original 10-20mm f/4-5.6 ticked pretty much all the right boxes, and rapidly became a top seller for users of Canon, Nikon, Olympus, Pentax, Sigma and Sony bodies alike.

Bought primarily for the lens, which works great! Everything else was fine and useful.

SLR Gear gave an accurate review regarding image quality. A little soft around the edges at the 20mm end, otherwise excellent. Most of the time you're at the wide end of this lens anyway and that's where it excels.

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  Silent, fast auto focus, image quality at wide end, build, handling, low distortion for a fish eye, constant aperture essential for video

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  Weight

This is an excellent lens for the money. At 10mm (F3.5( it was slightly soft but after 11mm the images were very sharp (F.4 and up). The quality and feel of this lens is really nice. It is a nice fit and nice price for my 7D.

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  Light lens compared to my 16-35mm; nice color and decent low light performance; nice build quality

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  Little soft at 10mm but sharpens quickly above 11mm.

Sharp images across it's range. Quality build. Worth every cent...

Beach Camera did a GREAT job in getting it to me QUICK!!! Thanks!

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  Fast / accurate auto-focus, Strong Construction, Durable, Lightweight, Rugged, Consistent Output, Easily Interchangeable

I did meet my resepction and thank you very much.The lens is very good for me.

Bought this and was disappointed, flaring is a real problem when the sun is out, you have to keep the sun immediately behind you. It is soft below f8 throughout range.<br /><br />I couldn't live with it and bought the Nikkor AF-S 10-24 which is an excellent lens, which I would highly recommend if...

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  Cheap

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  Distortion And Flaring

Love the way it gives my Landscapes depth and how detailed my closeup are great Wide-Angle lens.

A cracking little bit of kit that can hold its apeture all the way through its zoom. It's super wide so all you landscape lovers will be able to capture more. Its well worth the money!

The pack announced contain a tripod and I didn't received. The others itens are OK.