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Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens for Sony Alpha & Maxxum DSLR Cameras - USA Warranty

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Regular Price: $649.00 - Instant Rebate: $200.00 = $449.00 Get $17.96 Reward

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Sigma 10-20mm: Picture 1 regular $449.00

About Sigma 10-20mm

For limited time only, save 31% on the Sigma 10-20mm dropping from $649.00 to $449.00 when you buy this item at and Shipping is free! The Sigma 10-20mm also comes in Sigma 10mm - 20mm f/3.5 EX DC HSM Lens f/SonyAlp/Maxum, USA -w/FILTER BUNDLE-.

Sigma 10-20mm F3.5 EX DC HSM. This super-wide angle lens has a maximum aperture of F3.5 throughout the entire zoom range. With its wide angle view from 102.4 degrees it can produce striking images with exaggerated perspective. The maximum aperture of F3.5 is ideal for indoor shooting and it enables photographers to emphasize the subject.

Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass element provide excellent correction of color aberration. Four aspherical lenses provide correction for distortion and allow compact and lightweight construction.

The Super Multi-Layer coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range. The incorporation of HSM (Hyper-Sonic Motor) ensures a quiet and high-speed auto focus as well as full-time manual focusing capability.

This lens has a minimum focusing distance of 9.4 inches (24cm) throughout the entire zoom range and a maximum magnification ratio of 1:6.6.

The lens design incorporates an inner focusing system which eliminates front lens rotation, making the lens particularly suitable for using the Petal-type hood and polarizing.

Sigma 10-20mm Features

  • Super-Wide: 10-20 with maximum aperture of F3.5 throughout entire zoom range
  • High Image Quality: Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass elements and Four Aspherical lenses

Sigma 10-20mm Specifications

13 Elements in 10 Groups
Angle of view
102.4 Degrees - 63.8 Degrees
F stop range
Minimum Aperture :F22
Closest Focusing Distance
24cm (9.4")
Maximum Magnification
Filter Size
Dimensions (Length x Diameter)
87.3mm (3.4")X 88.2mm (3.5")
18.3 oz / 520 gr
Mfr #

Sigma 10-20mm Reviews Powered by TurnTo®

Review Snapshot®


(based on 116 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Excellent Product

Best lens all-around compared pricewise and capability-wise amongst several that were researched.


Most Liked Negative Review


Defected lense. AF is not accurate!!!


Reviewed by 116 customers


Worth the money


I bought this lens for landscape photography so not being fast is absolutely not an issue--nobody shoots landscape open wide. Tested it last weekend and I'm totally impressed with the wide view and definitely no complaints on performance. This is my second Sigma lens (the other is the 50mm 2.8 prime). I did a lot of research before settling on this.


Perfect for landscapes


Not a fast lens but who shoots f2.8 for landscapes? Perfect for me.


Superb DX Wide Angle Zoom


I noticed I reviewed this lens back in 2007, but since have moved entirely to FX and had given this lens to my daughter. This week, I decided to buy a new D7200 as a fun lightweight vacation camera and knew I needed to re-purchase this Sigma 10-20 f/4-5.6 lens because my daughter won't give mine back. Coupled with an older Tamron 17-50 f/2.8, these will be the only DX lenses I'll need to go with my huge selection of FX glass. There's a reason there is such a huge cult following for this Sigma 10-20 f/4-5.6 wide angle and is the reason I am re-buying it. It is just a superb example of this kind of lens. It's very sharp and fairly distortion free. It's 10mm wide end gives me that huge 100 degree field of view I love so much over the years. When used correctly, you can really get in tight with foreground elements while framing the background landscape elements, producing lovely images. The glass is sharp enough to take advantage of today's 24 mp camera sensors providing you do your part. All in all, I highly recommend this lens and the fact that it's so inexpensive is an added bonus.


Outstanding lens


This lens is more than I ever expected. The focal lengths are perfect for property photos and a fast lens correction in Lightroom puts everything into place. I love the fixed 3.5 and the 10mm. I have no problems with the SB800 flash providing enough light and coverage. The 82mm lens size is a lot of exposed glass so none of my other filters fit. Get what you need for filters when you order the lens so your ready to go when it arrives.


Nice extra wide angle lens for the money


Over the past few months, I have encountered several situations where I needed a wider angle lens than my basic 18-55 lens. In looking at the available lenses, including reviews, this lens looked like a very good lens, in terms of "bang for the buck". I've had it for a couple of weeks now, and have used it exclusively on several walking trips. I've not been disappointed. You have to be careful with image distortion at the very wide end (typical of very wide angles). So far, I haven't experienced any serious vignetting, but I tend not to shoot with the lens wide open most of the time. It does create some interesting angle distortion, but again this is typical of the wide angle. This lens isn't quite as fast as the newer Sigma lens, but so far, I haven't found that to be an issue. The lens appears to be well made, and works nicely with my Pentax camera, and at less than half the price of the comparable Pentax 12-24 lens. The autofocus speed has not been a problem, since most objects I shoot with this lens aren't moving very fast (or at all!)

(5 of 5 customers found this review helpful)


Great wide angle


I use this when I have a limited amount of room to work with. If you aren't familiar with ultra-wide lens, you need to know you can photograph an entire firetruck from about 1 foot away from the front bumper. Very useful when photographing cars, boats, tractor, and the inside of homes if you do real estate. This lens is very sharp if used properly. If outdoors, use the hood. There is no image stabilization on this lens, so you need to use your rule of thumb on shutter speeds or a tripod.


Panoramic Bird Photographer


I have been using lenses this wide since the Voigtlander 15mm f4.5 came out for rangefinder cameras in the mid-late 1990's. I have always liked fisheye and rectilinear super and ultra wide angle lenses. Lenses like this are very useful for shooting tight interiors in cars, boats, aircraft, and ships. And these are fantastic for showing a small room in one image. This is also a very dramatic lens to use in video. This version has surprisingly little problems with vignetting. And while they naturally have significant distortion, even in a rectilinear lens, in certain situations, they can also actually "straighten" wide perspectives. This lens, the f4-5.6 version and the Sigma 8-16mm all are similar in performance. I extensively field tested both 10-20mm Sigmas on my Pentax K3, and found them all to be up to producing good IQ up to about 18-20" wide, wider if you crop back the corners, or have dark or undefined detail in the corners. With some scenes, high detail near the corners and edges will blur, distort and sometimes smear. Note that that is not unusual at all for rectilinear lenses of 100 degrees or more. Even the full frame 14 and 15mm lenses do it. As comparing this lens against the f4-5.6 version, this lens vignettes very little, even wide open. You will get more vignetting from the f4 version wide open, but it tames down at f8. Central IQ is very good, not up to prime territory but still very useful for anything up to certainly 18-20 inches wide. The particular f3.5 that I got did not resolve quite as well as the f4-5.6 version I was also using. The impression I got of the pair I tested is that the f4-5.6 was a little better overall IQ, however, since Sigma lenses vary, your results could vary from this. For example I have field tested three different Sigma 8-16mm lenses, two were really very good, one was poor, but the best of the two good ones was nearly the performance of my 15mm Voigtlander near the edges (not at center). That one came from Adorama and it's a winner. For comparison, the 10-20mm f4-5.6 performed as well in most scenes as the 8-16, and a little better in resolution and sharpness over this model. However, this f3.5 version exhibited less chromatic or linear aberrations and very little vignetting than the f4-5.6. If you are getting the lens to shoot interiors, this shouldn't be an issue except at a very high contrast edge. The aberrations will show up, if they do, in high contrast edges, such as tree limbs against a blue sky. If your camera can use the HSM focusing motor, this is a really nice lens with more even lighting across the entire image area than the f4-5.6 If that is of less concern, the f4-5.6 version is a real bargain. I actually recommend all three as there really isn't any competition in the 8-10mm 110 + degree range on an APSc sensor Pentax, Canon, or Nikon that performs as well. Too bad the Sigma 8-16mm is not available in Pentax mount. This lens is best at f8 to f11 (also true of the other two), though mine did better than the siblings at f5.6


Nice lens


It's a great lens as it takes filters. on the A-77 it's still fairly wide, I returned it and got the 8-16mm as it is noticeably wider, but no filter. On the A-77 @ 1.82+/- crop.


Very nice super wide angle zoom lens


I bought this to get the super-wide angle landscape shots I've always dreamed of getting but not had the equipment for. I am very happy with this lens. I like the colors, speed and sharpness I have been able to get so far. Right now I only have a UV filter on it and need to get a decent polarizer to really test out sunny high elevation skies.

(1 of 1 customers found this review helpful)


A little distortion at the edge


Use the len for travel Take very good pictures Color /tone /sharpness. At 20mm comparable / AS GOOD as my Nikon lens Only drawback: at 10mm little distortion at edge of some picture which is normal for wide angle lens. Overall a very good product with reasonable / affordable price


Questions & Answers Powered by TurnTo®

Questions about this item:

Tommy J  has software been upgraded to be compatible with a65?
Andrew R  Users report that this lens is fully compatible with the A65.
Tommy J  My question was the Sigma 10-20 mm f3.5 EX DC HSN autofocus zoom lens compatible with the A77.
Tommy J  has software been upgraded to be compatible with a65?
Andrew R  Users report that this lens is fully compatible with the A65.
Tommy J  My question was the Sigma 10-20 mm f3.5 EX DC HSN autofocus zoom lens compatible with the A77.
Shopper  have heard that some Sigma lens are not compatible with the Sony SLT A33 and this a problem with the 3.5 Sigma?...the older Sigma was reported to not be compatible...thank you
YORE K  I have the sigma 10-20mm f3.5 and Sony a65 (a model that came out after a33 and A55). No compatibility issues what so ever. An amazing lens, getting great feedback on pictures taken with this combo.
Tom B  Do you have a website or a youtube account? Ive got the a65 and I want to get the lens but I want to see how it preforms on this camera!

Related Articles & Videos

User Report: Sigma 10-20mm f/3.5 EX DC lens

A superwide zoom lens joins a very small club with its constant f/3.5 aperture. Can it deliver the kind of sharp images that justify the cost and extra weight?Read More

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