Product Description

10-20mm F4-5.6 EX DC HSM lens allows enjoyment of super wide-angle photography and it is a very powerful tool for indoor shooting and landscape photography with APS-C size image sensors of digital SLR cameras. Wide angle of view (102.4 ° at 10mm and 63.8 ° at 20mm) offers the photographer greater freedom of expression. Three SLD glass elements are employed for effective compensation of color aberration, which is a common problem with super-wide angle lenses. One piece of glass mold and two hybrid aspherical lenses, offer excellent correction for distortion, as well as all types of aberration. This lens is equipped with an inner focusing system, and the models which are equipped with HSM system provide quiet, high speed autofocus shooting and also offer full time manual focusing. It has a minimum focusing distance of 24cm (9.4») at all focal lengths. The non-rotating lens barrel perfectly suits the petal shaped lens hood. A circular polarizing filter can also be used conveniently.

Product Details

• Amazon Sales Rank: #842 in Consumer Electronics
• Brand: Sigma
• Model: B0007U00X0
• Released on: 2006-10-11
• Dimensions: 3.50" h x 3.50" w x 3.50" l, 1.04 pounds

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Winner of the TIPA Best Consumer Lens 2006

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Winner of the TIPA Best Consumer Lens 2006

Manufacturer's Description
10-20mm F4-5.6 EX DC HSM lens allows enjoyment of super wide-angle photography and it is a very powerful tool for indoor shooting and landscape photography with APS-C size image sensors of digital SLR cameras.Wide angle of view (102.4° at 10mm and 63.8° at 20mm) offers the photographer greater freedom of expression. Three SLD glass elements are employed for effective compensation of color aberration, which is a common problem with super-wide angle lenses. One piece of glass mold and two hybrid aspherical lenses, offer excellent correction for distortion, as well as all types of aberration.This lens is equipped with an inner focusing system, and the models which are equipped with HSM system provide quiet, high speed autofocus shooting and also offer full time manual focusing. It has a minimum focusing distance of 24cm (9.4") at all focal lengths. The non-rotating lens barrel perfectly suits the petal shaped lens hood. A circular polarizing filter can also be used conveniently.

Customer Reviews

An awesome lens at an amazing price
I'm a newbie to DSLRs and went in for this lens for winde angle photos.Went through a couple of review sites and zeroed in on this lens.Got it yesterday and after a few test shots,gotta say this is one amazing lens.The quality is amazing and pictures are quite sharp.As someone above me said,there's a fair amount of vignetting but if you get used to it you can overcome it.Overall,an amazing lens at an amazing price

Great performer
I'm pretty new to photography and after a while playing with the kit lens I decided I wanted to have a wide angle. I read all the reviews and this Sigma was highly rated. Having used it for a few months I can only endorse this view. It takes great pictures even in the hands of a tyro like me and I think it is excellent value for money.

Stunning
First up let me say that I am not a professional photographer or even a very experienced amateur. I might not know all there is to know about photography but what I do know is that I LOVE what comes through this lens.

I was pleased with the build quality (as I have been with all my Sigma EX series lenses) and initial testing showed the autofocus to be fast, accurate and VERY quiet. This might not be surprising to those of you with a bag full of Canon L USM lenses but coming from consumer grade lenses this was a revelation.

I was seriously taken aback by just how wide 10mm is on a 1.6 crop camera (Such as Canons xxD and xxxD ranges). I could stand almost on top of subjects and still manage to get them all in. The extreme angles involved creates some distortion effects but these add to the pictures in my opinion.

The real joy however was when I returned from my first outing and began sorting through the pictures. The colours were fantastic, the images were, without exception, very sharp and the creative possibilities on a lens this wide made the photos stand out far more than the usual "snapshots" that a photographer of my calibre produces.

The ultra wide zoom made by Canon may well be better and I've no doubt that a full frame camera with professional grade lenses might yield better results but for this price I cannot find fault with Sigma's offering.