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The super wide-angle capability of the 10-20mm zoom makes it a very powerful tool for both indoor and landscape photography. It is specifically designed to optimise results with digital SLR cameras encorporating APS-C size image sensors or smaller. Aspherical lenses provide maximum correction for distortion and various aberrations high image quality is displayed throughout the entire zoom range. The HSM equipped models makes fast AF speeds and quiet shooting a reality, and it is also capable of full-time manual focus. It has a minimum focusing distance of 24cm (9.4) at all focal lengths. It is also equipped with an integral Petal-type hood to block out extraneous light.
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Technical Details
- 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 hyb- rid 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.
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By T. G. MARSHALL (West Sussex)
I thought for years i could get away without a decent wide angle lens, i realise after getting this that i couldn't.
I've read many reviews about this lens that complain about lack of sharpness around the corners at wider angles (10-15mm), but after a few dozen test shots with it, i can't see much loss of details at all.
Other reviewers of Sigma have also mentioned issues with build quality, but again it's all good here. This lens is solid! The supplied petal hood is a nice snug fit and the lens is nice and heavy, which helps greatly with getting a good steady shot, even at 1/30th sec with no tripod.
This lens is also almost silent when focusing thanks to it's hyper sonic motor (HSM).
I currently have the lens attached to my Nikon D200, which seems to be a match made in heaven, as the camera is now so well balanced, BUT VERY HEAVY!
One niggle many people have is that this lens is pretty much useless indoors without a flash, so if that's your thing, you should save up some extra pennies and get the constant f3.5 version.
If you've got the money, get this lens.
By Mr. Derek Parnell (UK)
Arrived well within time. Does what it says on the tin as they say and a great price.
By KJWATSON (UK)
I am impressed with the quality of this lens. However I would have liked to have been told before purchase that with the Nikon D3000, the auto focus is not operative.
By Ms. N. Hussein (London)
I got this lens yesterday, after reading all the great reviews and believe me, it really does live up to them! The super wide angle effect is simply breath taking and the build/quality of the lens is fantastic! Well worth every penny, great quality and soooo much fun to use!
By Damajin (Southampton, UK)
I was always a little dubious about buying non-canon lens' as I had read they had inferior glass etc. but that simply isn't true in this case. This is an amazing lens which gives outstanding results and at 10 - 20mm it's very hard to match when it comes to the angle. It is slightly limited on aperture size at f4-5.6 so taking shots in low light is almost certainly a tripod job unless you have a very steady hand. However, considering the purpose of a wide angle lens I didn't feel that this was a significant down-fall neither is the lack of image-stabiliser. The HSM focusing (equivalent to Canon's USM) is quick, quiet and accurate, although in very low light it does occasionally struggle to lock on, but I have had the same behaviour with my notably more expensive Canon lens' too. Plus it comes with a decent lens hood which is more than the Canon equivalent does. I would obviously recommend getting a UV filter, but you may also want to consider a circular-polariser too.
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Buy Sigma 10-20mm f4-5.6 EX DC HSM - Canon fit lens Now
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