Contact us
Close contact box
Connect ID #
207 465 862 3

Our hours

Connect ID #
207 465 862 3
All finished with your chat session?

We’ll email you a transcript of this conversation for your records.

For simple questions about your order,
try our virtual agent:

Please enter your name.  
Please enter a valid email address. Why is this required?
Please enter your US phone number.  

For Tech Support, call 1-888-292-2575

Thank you, !
Our conversation will be emailed to
Please enter a question  
Don't wait on hold. We'll call you back when it's your turn to talk with the next available .
Please enter your name  
Please enter your phone number  

Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

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

Wide-angle zoom lens for APS-C sensor SLR cameras (Canon mount)

Item # 366201CA

Discontinued item
1 question - 2 answers

Item # 366201CA

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

City streets can be cramped locations for shooting. So when it's time to take that corporate HQ shot for the annual report, you'll be happy this Sigma Photo 10-20mm f/4-5.6 ultra wide-angle zoom lens is locked in place on the front of your APS-C SLR. With a 102-degree angle of view at full wide, this lens will get an awful lot into the frame. Your shot will be crystal-clear, with an arresting perspective. This is an ideal choice for landscape and portrait photographers who want to explore a more adventurous depiction of space.

Product highlights:

  • Canon EF-mount
  • 10-20mm f/4-5.6 EX DC HSM wide-angle zoom lens with 35mm equivalent of 16-32mm on Canon cameras with APS-C sensors
    • not recommended for full-frame cameras
  • HSM (Hyper-Sonic Motor) for fast, silent focusing
  • three aspherical elements and three super low-distortion elements
  • ideal for landscapes, architectural photography, interesting perspectives, and group shots
  • minimum focus distance: 9.4 inches
  • constructed of 14 elements in 10 groups
  • filter size: 77mm
  • lens is 3-5/16" in diameter, 3-7/16" long
  • weight: 16.4 oz.
  • carrying case, lens hood, front and rear lens caps supplied
  • warranty: 4 years
  • Our 60-day money-back guarantee
  • MFR # 201-101

What's in the box:

  • Sigma 10-20mm f/4-5.6 EX DC HSM zoom lens for Canon
  • LCF-77 II lens cap (installed)
  • Rear lens cap (installed)
  • LH825-04 Lens hood
  • Soft padded case
  • Instructions
  • Warranty Card
  • Limited Warranty sheet

Customer reviews

Loading reviews...

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

Average review:

2 reviews

Thanks for submitting your review

Filter by rating

Customer photos

Sort reviews

Sort by:
Items per page:
View page:

Verified customer (What's this?)
Verified employee purchase (What's this?)



Crutchfield response

<< >>

More details on the Sigma Photo 10-20mm f/4-5.6 EX DC HSM

Mark G.

Features & specs

Mount Type Canon EF-mount
Sensor Size ---
Image Stabilization No
Lens Type Ultra wide-angle
Focal Length 10-20mm
Maximum Aperture f/4 (W) - 5.6 (T)
Weight 16.4 ounces
Parts Warranty 4 Years
Labor Warranty 4 Years

Product Research


Overview: The Sigma 10-20mm F4-5.6 EX DC HSM is designed to be used with cameras with APS-C size image sensors. It is the perfect lens for shooting landscapes, architecture, building interiors, group pictures, and much more. The lens has the Canon EF-mount

Lens Hood: The Sigma 10-20mm lens includes a lens hood to help prevent stray light from entering the lens, causing flare, and to protect the lens from rain, snow, and dust. When not in use, the lens hood can be inverted and mounted onto the lens backwards for storage.

Focus Mode Switch: The lens features a two-way switch for setting the focus mode: AF (auto focus) or MF (manual focus).

Sigma Technology: The lens has the following Sigma technology built-in:

  • Aspherical Lens: Aspherical lenses are used for outstanding optical performance and to keep the lenses compact.
  • Super Multi-layer Coating: Sigma's own Super Multi-layer Coating suppresses lens flare and ghosting by preventing reflections within the lens.
  • Rounded Diaphragm: Using a rounded diaphragm instead of a polygonal shaped one produces pleasingly rounded out-of-focus light points when opened to near maximum aperture.
  • Inner Focusing System: Sigma uses a focusing system that only moves elements within the lens barrel to avoid a changing barrel length as you focus.
  • Hyper Sonic Motor (HSM): The Hyper Sonic Motor uses ultrasonic waves to drive the autofocus mechanism. This extremely quiet operation helps avoid disturbing photographic subjects, and isn't picked up by the microphone while recording video.


  • Lens Construction: 14 Elements in 10 Groups
  • Angle of View: 102.4° to 63.8°
  • Number of Diaphragm Blades: 6
  • Maximum Aperture: f/4-5.6
  • Minimum Aperture: f/22
  • Minimum Focusing Distance: 9.48" throughout the zoom range
  • Filter Size: 77mm
  • Maximum Magnifications: 1:6.7
  • Dimensions: Diameter=3.281", Length=3.436"
  • Weight: 16.4 ounces

Loading accessories...

Customer Q&A

1 question already asked

will this camera work on a sony a6000 body???
[ al  Dec 11, 2015 ]
2 answers
no you have to find the specific mount just keep researching this is ef which is canon
[ Cory  Dec 14, 2015 ]
I don't know. I know it works on canon T-3.
[ Theresa  Dec 12, 2015 ]

Loading articles...