Sigma 10-20mm f/4-5.6 EX DC HSM Autofocus Zoom Lens for Sigma DSLR Cameras - USA Warranty

Sigma 10-20 f/4-5.6 EX DC HSM: Picture 1 thumbnail Sigma 10-20 f/4-5.6 EX DC HSM: Picture 2 thumbnail Sigma 10-20 f/4-5.6 EX DC HSM: Picture 3 thumbnail

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Sigma 10-20 f/4-5.6 EX DC HSM: Picture 1 regular $349.00

About Sigma 10-20 f/4-5.6 EX DC HSM

For limited time only, save 27.00% on the Sigma 10-20 f/4-5.6 EX DC HSM dropping from $479.00 to $349.00 when you buy this item at and Shipping is free!.

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

Wide angle of view (102.4° at 10mm and 63.8° at 20mm) offers the photographer greater freedom of expression.

These are special DC Series Lenses designed so that the image circle matches the smaller size of the image sensor of most digital SLR cameras. Their specialized design gives these lenses the ideal properties for digital cameras, the compact and lightweight construction is an added bonus!

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 24cm (9.4") 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.

Please note:
Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.

Summary of Customer Reviews

Customers most agreed on the following attributes:
Fast / accurate auto-focus (104),Strong construction (93),Consistent output (71),Easily interchangeable (55),Durable (54),Lightweight (54),Rugged (45),Easy to use (25),Compact (21),Improves picture quality (16),Nice bokeh (15),Easily mounted (13) Clear glass (11),Simple controls (11),Easy to clean (6),Sharp (3),Good price / value (3) View All
Heavy (21),Poor in low light (5),Blurry focus (4),Slow focus (3)
Best Uses:
Landscape/scenery (78),Night photography (30),Low light (28),Shooting outdoors (24),General purpose (21),Weddings (20),Landscape photography (20),Special effects (18),Shooting indoors (18),Travel (17),Panoramic filming (11),Video (10) Sports/action (9),Wildlife photos (9),Fun (8),Photojournalism (7),Documentary (6),Landscapes (6),Close up filming (6),Art (5),Macro photography (4),Real estate (4),Architecture (3),Upgrade (3) View All
Reviewer Profile:
Photo enthusiast (44),Enthusiast (36),Semi-pro photographer (26),Tech savvy (12),Professional (8),Semi-professional (8),Casual photographer (6),Pro photographer (6),Beginner (3),Film professional (3)

Sigma 10-20 f/4-5.6 EX DC HSM Features

  • Super wide-angle zoom lens designed exclusively for digital SLR cameras
  • Covers a superwide angle of view 102.4°to 63.8°
  • Three pieces of Special Low Dispersion (SLD) elements and three aspherical lens elements produce top quality optical performance.
  • Inner focusing system ensures the length of the lens remains unchanged whilst controlling aberrations.
  • Equipped with HSM (Hyper Sonic Motor) system
  • Minimum focusing distance of 24cm (9.4") at all focal lengths.
  • Relatively compact, lightweight for an ultra wide-angle zoom lens.

Sigma 10-20 f/4-5.6 EX DC HSM Specifications

14 Elements in 10 Groups
Angle of view
102.4°- 63.8°
F stop range
Minimum Aperture :F22
Closest Focusing Distance
24cm (9.4")
Maximum Magnification
Filter Size
Dimensions (Length x Diameter)
81mm (3.2")X 83.5mm (3.3")
16.6 oz / 470.60 gr
Mfr #

Sigma 10-20 f/4-5.6 EX DC HSM Reviews

Review Snapshot®


(based on 181 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 181 customers


Worth the money


from New England  -  Photo Enthusiast

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


from New England  -  Photo Enthusiast

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


Superb DX Wide Angle Zoom


from Orlando, Florida  -  Professional

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


from Kalamazoo, MI  -  Semi-pro Photographer

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.


solid lens


from pittsburgh pa  -  Photo Enthusiast

landscape shooting, interiors, perspective shots. nice solid quality, no complains


Nice extra wide angle lens for the money


from Charlottesville Va  -  Photo Enthusiast

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!)


Overall great pictures


from McDonough, Ga.  -  Semi-pro Photographer

This lens is very sharp in the center and corners at all apertures except 3.5 where the corners seam a little softer. The only real defect I see is somewhat high CA distortion in the corners but since PS and Lightroom 5 have such good tools to take care of this it is no longer a big problem. The extra wide view on the crop sensor cameras is great.


Wonderful in tight spots


from Fort Myers, Fl

Most of my photography and videos are done in conjunction with magazine stories and books, and because most are about outdoors or environmental subjects I often find myself in very tight quarters. The Sigma 10-20 replaced a 12 mm prime lens and has been great for things like photographing a dove sitting on a nest inside a porch light fixture, three fishermen landing a salmon in the cramped cockpit of a 20-foot boat and bats inside a small cave, where I wanted to get as much of the cave in the image as possible. I was surprised by the difference that an additional 2 mm makes. I also love the HSM focusing system, which is virtually silent. You never hear motor noise on the videos. What's not so great? The f3.5 maximum aperture, but I'm not complaining, since lenses that offer the same image quality and f2.8 are at least double the price.

(5 of 5 customers found this review helpful)


Great wide angle


from Springhill, LA  -  Tech Savvy

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


from Grapevine TX  -  Pro 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


Questions & Answers Powered by TurnTo®

Questions about this item:

Karin S  Will this lense fit the EF type mount on my Canon Rebel EOS Xi?
ARTURO R  Well I personally order the wrong one, need to send it back and re-order the right one, Make sure you place it for Canon EOS not Nikkon. Best regsrds
Gerilyn C  Is this lens compatible with a Canon Rebel XS (1000D)?
Helen O  Unfortunately no, this lens is for Sigma DSLR cameras.
Karin S  Will this lense fit the EF type mount on my Canon Rebel EOS Xi?
ARTURO R  Well I personally order the wrong one, need to send it back and re-order the right one, Make sure you place it for Canon EOS not Nikkon. Best regsrds
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