Sigma 10-20mm f/4-5.6 EX DC HSM Lens for Canon Digital SLR Cameras
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 digital SLR cameras. Wide angle of view (102.4 degrees at 10mm and 63.8 degrees at 20mm) offers the photographer greater freedom of expression. 3 Special Low Dispersion (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 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. Angle of View - 102.4 - 63.8 degrees 6 Diaphragm Blades Minimum Aperture F22 Minimum Focusing Distance - 24cm/9.4 inches Maximum Magnification - 1 - 6.7 Filter Size - Diameter 77mm Lens Hood Petal Hood Dimensions - Diameter 83.5mm x Length 81mm, 3.3 x 3.2 inches Weight - 470 gram (16.6 ounces)Product Details
Features
Editorial Reviews
Amazon.com Product Description
Designed exclusively for Canon digital SLR cameras, the ultra-wide-angle 10-20mm offers a view from 102.4 to 63.8 degrees, making it ideal for landscape photography and other vast applications. The lens is distinguished by its three special low dispersion (SLD) glass elements, which effectively compensate for color aberration, and its aspherical lenses, which provide maximum correction for distortion and various aberrations. As a result, the lens produces an extremely high image quality throughout the entire zoom range. The HSM-equipped models, meanwhile, produce fast autofocus (AF) speeds and quiet shooting while still letting you perform full-time manual focus. Other details include a minimum focusing distance of 9.4 inches at all focal lengths and an integral petal-type hood to block out extraneous light.
Lens Elements and Coating
The new multilayer lens coating and lens design reduce flare and ghost--a common problem with digital cameras--while also creating an optimal color balance throughout the entire zoom range. At the same time, the lens offers three SLD glass elements that effectively compensate for color aberration, along with a piece of glass mold and two hybrid aspherical lenses that offer excellent correction for distortion and all types of aberration.
Inner Focusing System and HSM
The lens incorporates an internal focusing system that eliminates front lens rotation, letting you use a petal-type hood to protect from additional glare. And models equipped with a Hyper-Sonic Motor (HSM) produce silent, high-speed autofocus and full-time manual focus for Sigma, Canon, and Nikon D-mount lenses.
Best Consumer Lens
The Sigma 10-20mm lens is so respected that it was named the best consumer lens in Europe (2006) by the Technical Image Press Association (TIPA), a collection of 31 publications from 12 countries. According to TIPA, the 10-20mm lens offers a versatile range of wide-angle focal lengths, a good optical performance, and a budget price, making it an excellent investment for owners of DSLRs with APS-C format sensors. Its sharpness remains constant throughout the zoom range, and its compact size makes it an ideal companion for shooting travel, landscapes, or architectural subjects.
From the Manufacturer
The 10 to 20 millimeters f4 to 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 degrees at 10 millimeters and 63.8 degrees at 20 millimeters) 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 24 centimeters (9.4 inches) 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.
Note to customers: Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.
Customer Reviews
Good Quality
I have always been loyal to Canon brand lenses, as we have a dozen of them. I have not had good results from off brand lenses but this 10-20mm lens is a solid, quality piece of glass. It appears to be made well enough to withstand the use and abuse our equipment gets shooting outdoors on location. It is very sharp and the zoom ring slides very smoothly with good control. Time will tell if it holds up well after a year or two of use. I like the sunshade that is included with it, but also must note that it has a large front element that is very vulnerable to dirt or fingerprints. For the reasonable price of this very wide lens, I would say its a good value and a fun lens to do some abstract wide angle work without spending too much money.
Save yourself $$ and get this lens
I bought this lens and was considering the Canon with similar specs at the same time. I am so happy I chose this one. It costs significantly less than the Canon and the pictures are phenomenal. I am astounded how wide it gets. There is, to be expected, distortion at the edges of the photo at 10mm. At 20mm, it's essentially imperceptible. I use this lens for all sorts of shots, from group photos to near-panoramic landscapes.
Fanstastic lens and a great value
First off, a wide-angle is sensor specific so there are just a few top contenders for Canon's APC-S (1.6x crop factor) cameras. I shoot with the Canon EOS 40D. The downside here is that if you choose to get a full-frame camera body such as the Canon EOS 5D, you will need to replace this and any other EF-S lenses you own.
The Sigma 10-20mm f/4-5.6 has everything I valued going for it: price, build quality, great glass and zoom range. It also comes with a lens hood which the more expensive Canon competitor does not.
I rented a couple of comparable lenses to help in my decision: the Tokina 11-16mmf/2.8 and the Canon 10-22m f/3.5-5.6
The Canon 10-22mm, like all EF-S lenses I've used, is built like a toy in comparison to other lenses. Cheap, plastic, loose tolerances. While it did produce OK results, I got vignetting wide open. Considering that its' price is higher than all the rest, it did not look like a good value.
The Tokina, on the other hand, was build like a tank. Great contrast, clarity and fast. However, I decided that I didn't need the f/2.8 or the extra $100 on the price tag and did want the extra zoom range. But it is a great lens and you can read my review on the product page.
Regardless, I am completely satisfied with this lens and highly recommend it over the Canon.
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