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Sigma 10-20mm f/4-5.6 EX DC HSM Lens for Canon Digital SLR Cameras
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- 10-20mm focal length
- 15-30mm equivalent focal length on APS-C cameras, 20-40mm equivalent focal length on Four Thirds / Micro Four Thirds cameras, 16-32mm equivalent focal length on Canon APS-C cameras
- F4-5.6 maximum aperture; F22-32 minimum
- Ring-type ultrasonic-type AF motor with full-time manual focusing
- 77mm filters
- 0.24m/9.45" minimum focus
- Available in Canon EF, Four Thirds, Pentax KAF, Sony Alpha, Sigma SA, Nikon F (DX) mounts
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From the manufacturer
10-20 mm F4-5.6 EX DC (HSM)*
It’s important to have a high quality ultra-wide angle zoom in a lens kit. Sigma's 10-20mm F4-5.6 EX DC ultra-wide zoom lens for digital SLR cameras is ideal for landscape photography, building interiors, group and party pictures and so much more. Great for working with close foreground subjects as this lens features a minimum focusing distance of 9.4-inch at all focal lengths ensuring great creative potential. The wide angle view of up to 102º also offers greater freedom of expression.
Dimensions (Diameter x Length): 83.5 x 81 millimeter / 3.3 x 3.2 inches
Weight: 465 grams / 16.4 ounce
Since 1961, and with the recent introduction of Sigma Global Vision, we have worked toward one single, simple goal: To hold ourselves to the highest standard of design & manufacturing of imaging products. Photography is all we do. And it’s all we’ve done. So you can rest assured that it’s something we know extensively and care deeply about. You have a vision. We’ve made it our mission.
- Ultra wide angle with view of up to 102 degrees
- Internal focusing system technology
- *HSM is not available for Sony and Pentax
- Carrying case, hood, front & rear caps
|Aperture Control Design||Aperture controlled by camera|
|Compatible Mountings||Canon EF-S|
|Focus Type||Ring-type ultrasonic|
|Included Components||Lens Hood, Front & Rear Lens Caps, 4-Year USA|
|Item Dimensions||3.31 x 3.31 x 3.19 inches|
|Item Display Weight||0.47 Kilograms|
|Item Weight||1.04 pounds|
|Lens Type||Zoom lens|
|Macro Focus Range||0.24 m|
|Material Type||Metal mount|
|Maximum Aperture Range||F4.0 - F5.6|
|Maximum Focal Length||20 mm|
|Maximum Format Size||APS-C / DX|
|Minimum Focal Length||10 mm|
|Minimum Focal Range||10 mm|
|Number of Diaphragm Blades||6|
|Number of Elements||14|
|Number of Groups||10|
|Photo Filter Thread Size||77 mm|
|Real Angle Of View||102.4 Degrees|
|Shipping Weight||1.6 pounds|
|Style Name||Canon SLR Camera|
|Zoom Type||Motorized Zoom|
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This item Sigma 10-20mm f/4-5.6 EX DC HSM Lens for Canon Digital SLR Cameras
|Shipping||—||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||Available from these sellers||Amazon.com||Amazon.com||Amazon.com||RitzCamera||6ave|
|Compatible Camera Mount||Canon EF-S||Canon EF-S||Canon EF||Canon EF-S||Canon EF-S||Canon EF|
|Focus Type||Ring-type ultrasonic||Stepper motor||Ring-type ultrasonic||Ring-type ultrasonic||Micromotor||auto-focus|
|Item Dimensions||3.31 x 3.19 x 3.31 in||2.95 x 2.83 x 2.95 in||3.43 x 3.46 x 3.43 in||3.31 x 3.54 x 3.31 in||3.27 x 3.31 x 3.27 in||3.4 x 3.9 x 3.4 in|
|Item Weight||1.04 lbs||0.53 lb||1.15 lbs||0.85 lb||0.9 lb||1.35 lbs|
|Lens Type||Zoom lens||wide-angle||Zoom lens||Zoom lens||Zoom lens||Wide-angle|
|Maximum Focal Length||20 millimeters||18 millimeters||20 millimeters||22 millimeters||24 millimeters||24 millimeters|
|Minimum Focal Length||10 millimeters||10 millimeters||10 millimeters||10 millimeters||10 millimeters||12 millimeters|
|Photo Filter Thread Size||77 millimeters||67 millimeters||82 millimeters||77 millimeters||77 millimeters||—|
EX lens series denotes excellence of engineering and new technology Correction for various types of aberration provided by three SLD (Special Low Dispersion) glass element and two aspherical lenses Equipped with the silent, responsive and high speed Hyper Sonic Motor and provides fulltime manual focus override Minimum focusing distance of 9.4 ( 24 cm ) at all focal lengths The IF (Internal Focusing) design offers smooth and fast autofocus and non-rotating filter attachment
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.
- Lens construction: 14 elements in 10 groups
- Angle of view: 102.4 to 63.8 degrees
- Number of diaphragm blades: 6
- Minimum aperture: f/22
- Minimum focusing distance: 9.4 inches
- Maximum magnification: 1:6.7
- Filter size: 77mm
- Dimensions: 3.3 inches in diameter and 3.2 inches long
- Weight: 16.4 ounces
Top customer reviews
This lens was introduced in 2005, I think. Its successor, the 10-20mm f3.5 in 2009. This one is $270 less. What you get with the newer, more expensive lens is that the f3.5 uses fewer lenses in fewer groups. This produces the only significant performance difference, which is flare. If you include the sun in the image, this lens will flare throughout. The f3.5 will also flare, but less. Of course, if you try to include a strong point source in a 10mm image, just about anything out there will flare some. Shoot without the sun in the scene and let Photoshop be out friend.
As expected with a super-wide, there is some CA, but it's mostly simple purple fringe and very fixable. I always would rather have less complex CA than a tad more sharpness, because complex CA is likely not fixable, and it amounts to the same thing as being less sharp, especially in terms of practical viewable image quality.
I've been doing serious photography since 1967, and it's a small miracle that such a lens can be made today.. It's good enough that it is my only non-Pentax lens.
+ Price/value - the least expensive autofocusing ultra-wide angle (UWA) lens for crop sensor. If you have a good copy it's competitive with the Nikon 10-24 or Canon 10-22.
+ Sharp if you have a good copy - the center is sharp wide open and the corners catch up around f/8 to f/11
+ Good colors/contrast - I found pictures from the 10-20mm to have better contrast and more saturated colors straight out of camera than the Tamron 17-50mm, a lens that pairs well with this lens at around the same price.
+ Solid build quality - no wobbly parts, tightly constructed, and internal focusing (no extending/retracting parts when focusing). The zoom and focus rings both have a solid feel to them.
+ Fast and almost silent autofocus
+ Comes with a 5-year warranty, padded case and hood (Canon only provides 1 year and no accessories for their non-L lenses)
+ Takes 77mm filters - no vignetting even with non-slim frame filters
- I've mentioned "if you have a good copy" several times. I've tested 5 copies of this total and 3 of them showed some degree of de-centered elements, two obvious. If a glass lens element or group of elements is not aligned or slightly tilted inside the lens, the effect can show up in pictures. The effect is that one side (left, right, top or bottom) will be blurry and out of focus while the other side will be sharp and in focus. To be fair, this isn't a problem limited to this lens - there are copies of the $2000 Nikon 14-24mm or the $1700 Canon 16-35mm that have this problem. The problem does seem more pronounced in UWA lenses, probably due to the large angle of view. How do I test for decentering? Shoot a flat subject (a brick wall, a row of trees or even a grass lawn) but make sure the lens is facing completely perpendicular to the subject. Shooting at a non-90 degree angle will naturally cause one side to be more out-of-focus, especially at wide apertures. If the lens is decentered, it will be most apparent at its widest length and aperture (in this case, 10mm f/4) because the most glass is exposed to the sensor. View the image at 100% on the computer at the sides of the image. Usually most lenses have one side slightly sharper than the other, but if one side is obviously blurrier than the other then it can be a problem in your real-world shots. It's a shame that quality control and manufacturing tolerances have not caught up to eliminate this problem and I've heard that it can be quite time-consuming to fix a decentered lens.
In short, I recommend this lens for its pros but advise you thoroughly test it out when you get it.