Sigma 10-20mm f/4-5.6 EX DC HSM Lens

Already own this?

This item is in your gearlist!

77% Tried & Tested
Optically the lens is a solid if not outstanding performer, build quality is up to Sigma's usual standards, and the focusing is indeed fast, silent and accurate.”

Read more of the review

Key Features

  • 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

Product Description

The 10-20mm F4-5.6 is the cheaper of two Sigma lenses covering the ultra-wide angle range for APS-C SLRs (the other offers an F3.5 constant maximum aperture). It’s a solidly-made lens with fast, silent autofocus, and available in versions to fit every SLR on the market. It’s probably better suited to landscape work than architecture, due to fairly strong barrel distortion at wide angle.

Specs

Principal specifications
Lens type Zoom lens
Max Format size APS-C / DX
Focal length 10–20 mm
Image stabilisation No
Lens mount Canon EF, Four Thirds, Pentax KAF, Sony Alpha, Sigma SA, Nikon F (DX)
Aperture
Maximum aperture F4.0 - F5.6
Minimum aperture F22.0 - F32.0
Aperture ring No
Number of diaphragm blades 6
Aperture notes rounded blades
Optics
Elements 14
Groups 10
Special elements / coatings 3 SLD glass elements 2 hybrid aspherical elements 1 glass mold aspherical element
Focus
Minimum focus 0.24 m (9.45)
Maximum magnification 0.15×
Autofocus Yes
Motor type Ring-type ultrasonic
Full time manual Yes
Focus method Internal
Distance scale Yes
DoF scale Yes
Physical
Weight 470 g (1.04 lb)
Diameter 84 mm (3.29)
Length 81 mm (3.19)
Materials metal mount
Colour Black
Zoom method Rotary (extending)
Filter thread 77 mm
Filter notes does not rotate on focus
Hood supplied Yes
Other
Notes Nikon, Pentax, Sigma, Sony and Four thirds mounts

Reviews

DPReview Conclusion

Scoring is relative only to the other lenses in the same category at the time of review.

Score Breakdown
Poor Excellent
Build Quality
Ergonomics and Handling
Features
Image Quality
Value
Tried & Tested
Tried & Tested
77 %
Overall Score

Overall the Sigma 10-20mm F4-5.6 EX DC HSM is a solid, well-built lens with good operational characteristics, which justifies its popularity with generally decent imaging results. While its long-running unique selling point of being the only third-party 10mm zoom has now disappeared, and it faces strong competition from Tamron's 10-24mm, the different characteristics of the two lenses means it's still a good option for APS-C users looking for the widest of ultra-wideangle zooms.

Good For

Cropped sensor shooters looking for an affordable, well-built super wide angle zoom lens.

Not So Good For

People who are picky about barrel distortion, or shoot in a lot of low-light environments.

User Reviews

4.28571 out of 5 stars
  • mr vigo, Jan 6, 2013 GMT:
    Great-sharp-quite-nice price

    acteally its my amazing lense i found it most great lense than canon its a nice price & perfect lense & beauty color altogh its from big company in lense made the lense is the 2d place after Tokina

    Continue Reading

  • Jose Rocha, Nov 23, 2011 GMT:
    My quick review

    This lens could be better for the price I paid at the time (€510). I like this lens a lot for the professional feel, colors and of cours the wide angle. Optically my copy has a flaw and unfortunately I noticed it too late. Pros: - Good (not great) sharpness at most of the frame. My copy is decentered and doesn't give justice to it, but the sharpest side of the frame is good at f/5.6. I normally use it at f/8 or f/11 and the sharpness improves significally. - Like my Nikkor 35mm f/1.8, this ...

    Continue Reading

  • fastHID, Nov 4, 2011 GMT:
    a great wide angle zoom

    After reading plenty of reviews, I bought this lens for HDR landscape photos on my Canon 60D and it indeed is a fine lens. Feels very solid, autofocus is very fast, zoom is smooth, manual focus very smooth too. Have done some great interior shots, minimal distortion and only on the wide end. Great lens for the money too. No regrets. After months of outdoors use, no dust at all internally. Fits the body well too. Problems: none.

    Continue Reading

  • whyukon, Aug 13, 2011 GMT:
    A top pick

    I carefully researched and read all the reviews of available super-wide zooms before settling on this one. There is a lot of choice now, and each lens seems to have its own strengths and weaknesses. However, in my opinion, this lens is still a standout. The construction quality of this lens is far beyond what one would expect for a lens of this price. It feels incredibly solid, like the high-quality prime lenses of many years ago. Both the zoom and the focusing ring are very ...

    Continue Reading

Questions & Answers

QUESTION

Complete upgrade or add to the bag?

Hi, I'm here to get some second opinions on my desire to upgrade or add to my bag. So far I own a Canon Rebel T3i with a Sigma 10-20mm f4-5.6. I have been shooting for long enough and I don't see myself staying within crop sensors any longer. I used to shoot film completely so I need the full frame to fulfill my cravings. However, I also want to have video capability so that I can produce videos as well. Right now, with the T3i and Sigma, I can probably sell the T3i for around $400-500. As for the Sigma, maybe around $300-350. So I can potentially have $700-850 by selling all that I own. I am also a sneakerhead and maybe willing to sell some of shoes for up to $500. So, if I'm willing to sell all of my stuff, I can have up to around $1100-1350. So here's my dilemma. With that potential $1350, I can purchase myself a used Canon 5D Mark II for around $1200 (maybe less if I can haggle). Which means I can potentially have maybe around $200 left. I can then buy a Nifty Fifty or save up a ...

droberto asked
8 months ago

ANSWERS

Sell some (useless :-)) sneakers for $550. Spend $450 for a 5DC and another $100 on a 50mm f/1.8 and keep your T3i. Now you have wide angle, portrait, and video capabilities with the T3i, and full frame "normal" with the 5DC. Buy a 6D with kit lens as an upgrade for the 5DC when prices for that camera fall below $1000 (give it a year or two). Continue Reading

joejack951 answered
8 months ago

joejack951 wrote: Sell some (useless :-)) sneakers for $550. Spend $450 for a 5DC and another $100 on a 50mm f/1.8 and keep your T3i. Now you have wide angle, portrait, and video capabilities with the T3i, and full frame "normal" with the 5DC. Buy a 6D with kit lens as an upgrade for the 5DC when prices for that camera fall below $1000 (give it a year or two). That's what I was exactly thinking as another option! I somewhat can't part with this little T3i, it's my first DSLR. Wow, I never thought about the 6D ever. Thanks joejack! Continue Reading

droberto answered
8 months ago

QUESTION

Sell Sigma 10-20mm for used Canon 5D mk1?

Hi, I just need some opinions on what I should do. As of right now in my bag, I carry a Canon Rebel T3i with 40mm f2.8 and Sigma 10-20mm f4-5.6, so I got some coverage in the ultra wide range and the portrait range. However, I'm not quite satisfied in this consumer camera; I have the urge to upgrade to a Prosumer or Professional/FF body. I have a friend who is willing to sell me his used Canon 5D MK1 for $450. I want to know if I should sell my Sigma to own a 5D for portraiture and the T3i as a backup. I've been doing my research on the 5D and it's often quite called a "dust magnet", where you have to clean the sensor yourself. I don't know how to do that yet, hopefully it's something I can do at home without expensive materials or anything, since I don't have money to get it cleaned elsewhere. I used to shoot film so I really like the full frame, but I also want to get into video, hence the T3i. I've considered the 5D mkII but way out of my budget, I'd have to sell everything I own ...

droberto asked
8 months ago

ANSWERS

Well, I bought a 5D Mk I a couple months ago, sent it to Canon for the mirror update which included a free cleaning. Since then and multiple lens changes ( I always change with the camera facing down) there is still zero visible dust. I sold my 60D to buy the 5D and absolutely love it. The file quality is fantastic and I can now get back to the FOV I have with my film cameras. I still shoot film and it always annoyed me the my lenses didn't view the same on crop and FF. As for selling you Sigma, only you can answer that. But imho, the 5D Mk I is a fantastic camera. Continue Reading

Hemidart answered
8 months ago

Hemidart wrote: Well, I bought a 5D Mk I a couple months ago, sent it to Canon for the mirror update which included a free cleaning. Since then and multiple lens changes ( I always change with the camera facing down) there is still zero visible dust. I sold my 60D to buy the 5D and absolutely love it. The file quality is fantastic and I can now get back to the FOV I have with my film cameras. I still shoot film and it always annoyed me the my lenses didn't view the same on crop and FF. As for selling you Sigma, only you can answer that. But imho, the 5D Mk I is a fantastic camera. This makes me feel better about getting one. Especially about how you change lenses facing down (which I will always do when I get one!). I'm still iffy about selling my Sigma though, it's an awesome lens which I got really cheap. It would be really helpful for video and just when I need the wide perspective, perhaps I'll buy a Rokinon 8mm fisheye and see if I can defish the images so it'll still give me ... Continue Reading

droberto answered
8 months ago

If you buy the 5D, you will need a 105mm lens for portraits. Continue Reading

pavi1 answered
8 months ago

QUESTION

Lens for real estate photography

I am in need of a lens for my Canon 70D. Ultimately I would like a Sigma 10-20mm, but also in need of a general all purpose lens. I've also considered something like the Sigma 17-70mm so I can get F4 across that focal range. The only lens I have now is the Canon 50mm 1.8. Would the 17mm be adequate to at least get started? I don't have the money for both.

rweaver85 asked
10 days ago

ANSWERS

17mm will generally be enough for most rooms apart from very small bathrooms, etc where you can't "back up' enough, but it is dependant on the client. Generally there's two schools of thought the clients falls in to: a) The photos should be as good as they possibly can be to wow the client and get them to view the property. This is generally for upper-end properties that have a good level of fit and finish, are nicely decorated/furnished, etc... These are the clients where your 17mm might not be acceptable as they want the super wide wow-factor to feel like the person viewing the photo is immersed in the room. The client being wowed by how nice the house looks books an appointment to view. or b) The photos are there just to give enough of an indication as to the general space and layout of the house to get the customer interested in viewing it in person, they don't want to give too much away, they'd rather the bad points be addressed in person by the agent who can steer the ... Continue Reading

RhysM answered
10 days ago

My goal is to get a 17mm TS-E lens. Continue Reading

rweaver85 answered
10 days ago

The wider, the better, so long as it is a quality, rectilinear lens. Shoot RAW. I've shot quite a bit of architecture with a 16-35 on a full frame camera. I still find myself trying to back up though a wall, (especially in bathrooms)! Continue Reading

hotdog321 answered
10 days ago

Warranty Information

"Beginning July 1, 2013, all brand new Sigma Products purchased from authorized Sigma dealers are covered under the 1 year America warranty (North and South America) and U.S.A. extended warranties for a period of three (3) years against defects in manufacturing and workmanship only. Your warranty period begins the day you purchase your Sigma camera, lens and/or flash and runs for a total period of four years from that date (please refer to the warranty policy included with your product)."

Go to Sigma's warranty registration page for more information and to register your Sigma product. DPReview GearShop is an authorized Sigma dealer in the United States.

  • Please enable JavaScript. GearShop is designed to work with JavaScript enabled. You may not be able to use our site properly if it's disabled in your browser's settings.