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This ultra-wide zoom lens has a wide angle of view from 102.4 - 63.8 degrees and it is exclusive to digital SLR cameras. SLD glass elements effectively compensate color aberration. 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 9.4" (24cm) 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 ultra-wide angle lens designed exclusively for Canon digital SLR cameras- 3 special low dispersion (SLD) glass elements to compensate for color aberration
- Hyper-Sonic Motor (HSM) produces silent, high-speed autofocus; full-time manual focus
- Multilayer lens coating reduces flare and ghost; 9.4-inch close focusing distance
- Measures 3.3 inches in diameter and 3.2 inches long; weighs 16.4 ounces
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By J. Madden
This is really a fabulous Lens. You can read all about the technical stuff somewhere else.
A word of caution when ordering through amazon though. If you need it right away, make sure it's being shipped by Amazon, and not a third party.
I had ordered this, an paid for expedited shipping. It was still almost a week before it arrived.
If you need it the next day, get it from B&H
By Peter Chenoweth
First words? "Wow."
Second words? "Why did I wait this long?"
From 2004-2008, I owned a Nikon D70. From 2008 on, I've owned a Nikon D90. Both DX bodies, both great. My widest lenses through all of those years was always an 18mm. That was usually "wide-enough" for me, but there were occasions where I couldn't *quite* frame the photo the way I wanted. Couldn't *quite* fit it all in the frame. As this lens has been out for a few years, I've toyed on and off with buying one. I finally recently did, and I'm blown away.
I should have bought this lens 4 years ago. This lens has opened my eyes to how restrictive 18mm on a DX-body can be. You don't understand "wide" until you've shot with a lens like this.
I'm generally a Nikkor guy. I love my Nikon bodies, and I generally like to use Nikkor glass. But I've got to say, this is my second Sigma lens, and both have greatly exceeded my expectations. The build-quality on this thing is great. Zero regrets. And for half the price as Nikkor's 10-24mm, it's a good deal. Optically and mechanically, it seems flawless. Sharp, contrasty, and not a lot of distortion for as wide as this is.
And yes, there's a newer version of this lens, a fixed-aperture f3.5 10-20. For me it doesn't matter much as I'm mostly using this lens down around 10mm anyway, where the difference between f4 and f3.5 is nearly meaningless. And it's so wide even at 20mm, that shake issues (due to slow shutter necessitated by f5.6) are mostly a moot point. IMHO, fixed apertures matter a whole lot more for telephoto lenses than they do for wides, and this lens is super-wide.
From a creative standpoint, this lens is astounding. It's not just about being wide; capturing the whole skyline, the whole meadow, or the whole mountain range. It's really about perspective and depth. Even a photo of something as mundane as a soda can on a coffee table takes on a whole new perspective (literally!) when shot with a super-wide like this. Get close. Really close. Closer. Pow! Your photography will never be the same. Just as a telephoto lens compresses distance (distant objects seem closer), wide angle really expands distance. Compose a flower or some other small object up close, with an expansive background landscape, at 10mm, and the resulting photo will nearly leap out at you. Push it further, closer to the foreground object, and the flower will be enormous while the distant mountain peaks are minuscule. Amazing creative potential.
This lens is about as wide as you can go on a DX body. It's probably not an 'every-day' or 'walkaround' lens for most people. Myself included. But I can say that if I could only grab *two* lenses for a day of casual and fun shooting, there's a pretty good chance I'd grab this 10-20 right after either my 35mm or 50mm prime.
By Mark (Eastern MA)
I have yet to put this lens through it's paces so I'll rate it 4 stars for now (could be a 5 ??) Like some others, I had a question about the extended warranty as there was no warranty registration card that required mailing back to Sigma shipped with the lens. I called Amazon service, they told me to call Sigma (631.585.1144), no problem, the Amazon guy seemed to think that there should be something I had to mail back to Sigma. I called Sigma, identified the lens as an EX lens, Sigma explained that all EX lenses have extended warranties, no need to mail anything in. If you need service just send them the (non mail in) card that came with the lens, your invoice from Amazon and you will be able to get warranty service from the date of purchase for the next four years.
By E. D'Alise (Monument, CO)
I waited to review this lens until I returned from our Hawaiian vacation, but I was very pleased with my purchase from the start.
I have a gallery of the test shots I did with this lens, and perhaps that would be sufficient to answer any questions anyone would have about the lens.
[...]
The light was not too great for a number of the shots, but they are still usable for examining the performance of the lens.
I had some misgivings about buying the lens because of reports Sigma sufferes from inconsistent quality (some users having to exchange the lens a few times), however, I did not encounter any of the described problems. I am not a pro, but perhaps qualify as experienced amateur. Still, I can't readily quote all of the lens-related lingo. What concerns me is if I like the shot after I take it, and so far I've been very happy with the lens.
This is the first non-Nikon lens I have ever purchased in the 30+ years of Nikon shooting, but it's not likely to be the last. The cost was about half of a comparable Nikon product, and the performance according to many reviews is better. I cannot offer a direct comparison to other products as I don't have a similar Nikon lens, but I can say this lens is always with me, and I actually look for opportunities to use it.
By Babby (Phoenix, Arizona)
I have had this lens for over a month and I have to say that I am extremely satisfied with the performance. I think this may be one of the most underrated lenses out on the market today. I think there is an inclination for semi-pro and pro photographers to discount Sigma lenses because they are not a Nikon or Canon lens, but I respectfully disagree, you can find gems out there and this is one of them. I have used the lens in two shoots with my Nikon D300 and am happy with the level of sharpness.
The down side: vignetting and the f5.6. f5.6 you can overcome with your lighting, but the vignetting although not offensive does exist and is not something you can really compensate for. I tested a colleagues lens before purchasing this lens and I was aware of it going into my purchase. If that is not a concern of yours or you are like me and you embrace it and use it in your photographs, then you will be satisfied.
Overall this was a lens I kept pushing off purchasing for one reason or the other and it was a mistake. I now realize that I could have been using this on other shoots and landscape photography a long time ago.
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Buy Sigma 10-20mm f/4-5.6 EX DC HSM Lens for Canon Digital SLR Cameras Now
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