The Sigma 10-20mm f/4-5.6 DC Canon AF is a super wide-angle zoom lens. The Sigma 10-20mm is designed exclusively for Canon digital SLR cameras.
This ultra-wide zoom Sigma 10-20mm lens has a wide angle of view from 102.4 – 63.8 degrees (when Sigma mount is used). The Sigma 10-20mm f/4-5.6 DC Canon AF is an excellent investment for owners of DSLRs with APS-C format sensors.
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. The Sigma 10-20mm f/4-5.6 DC Canon AF 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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digitalslrphoto.com reviews the Sigma 10-20mm f/4-5.6 EX DC HSM and writes:
“Using such a wide angle-of-view presents a whole host of fresh creative possibilities and since buying this lens, I rarely use any other focal range to shoot landscape images.
As you would expect from one of Sigma’s EX range, the lens is solid, well constructed and a joy to handle. It may have a relatively slow maximum aperture of f/4-5.6 – but scenic photographers will normally employ an f/stop of f/8 or smaller anyway.
Considering its ultra-wide focal range, it is remarkably compact and it is designed with a practical filter size. Compared to the Nikkor 12-24mm f/4 and Canon’s 10-22mm f/3.5-4.5, it represents a healthy saving of over £200, yet it isn’t a compromise on quality.
If you use an APS-C-type DSLR (most of us do) and presently in the market for an ultra wide-angle lens, then this may well be the optic that you are looking for. It comes highly recommended.”
Photodo reviews the Sigma 10-20mm f/4-5.6 EX DC HSM and writes:
“With the wide field of view that this lens gives the digital SLR owners that require panoramic style angles, this lens is an answer to their prayers. The performance is excellent and the size and weight is little more than a standard zoom. Aimed at an area where there are no contenders stepping down from the 35mm arena and fulfilling a definite need, Sigma should be onto a winner here.”
What Digital Camera reviews the Sigma 10-20mm f/4-5.6 EX DC HSM and writes:
“Some lack of critical sharpness, particularly in the corners, combined with poor control of chromatic aberration has let down what could be a great optic for the price.”
slrlensreview.com reviews the Sigma 10-20mm f/4-5.6 EX DC HSM and writes:
“Sigma 10-20mm f/4-5.6 EX DC HSM is a great value for your money. The lens is one of the widest zoom lenses for APS-C dSLRs available on the market. Its build quality matches (and some might even claim exceeds) that of a Canon’s L lens. Image quality rivals other ultra wide zooms on the market. Distortion that plagues the lens across entire focal length is something to be aware of, but considering that I have yet to see an ultra wide zoom that does not show any distortion, I would not stress too much about it. Given its aggressive price, Sigma 10-20mm f/4-5.6 EX DC HSM should remain at the top of your shopping list. Assuming you’re OK investing in an APS-C type lens that is.”
The Sigma 10-20mm f/4-5.6 DC Canon AF 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 102.4-63.8 degrees (for Sigma mount) offers the photographer greater freedom of expression. The new multi layer lens coating and lens design reduce flare and ghost, which is a common problem with digital cameras and also creates an optimum color balance through the entire zoom range. Three SLD (Special Low Dispersion) 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 Sigma 10-20mm f/4-5.6 DC Canon AF lens incorporates an internal focusing system, which eliminates front lens rotation allowing the use of a Petal-type Hood and also minimize fluctuation of aberration caused by focusing system. The HSM equipped models ensure a silent, high-speed AF function as well as full-time manual focusing capability. This Sigma 10-20mm lens has a minimum focusing distance of 9.4″ (24cm) throughout the entire zoom range. The Sigma 10-20mm f/4-5.6 DC Canon AF is awarded TIPA best consumer lens in Europe 2006. with a versatile range of wide-angle focal lengths, a good optical performance and a budget price, the Sigma 10-20mm is 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 photography.
Specifications:
Lens Construction: 14 Elements in 10 Groups
Angle of View: 102.4 – 63.8
Number of Diaphragm Blades: 6
Minimum Aperture: F22
Minimum Focusing Distance: 24cm/9.4 in.
Maximum Magnification: 1:6.7
Filter Size: Diameter 77mm
Dimensions: Diameter 83.5mm X Length 81mm, 3.3 in. X 3.2 in.
Weight: 465g/16.4 oz