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Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens for Sony Alpha

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The Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom is a super-wide angle lens with a relatively bright f/3.5 maximum aperture throughout its zoom range, helping to ensure high image quality.  The lens gathers enough light to make it a great choice for indoor shooting as well as landscapes and creative portraiture.  This version of the lens is exclusively made to fit Sony's Alpha lens mount, which is also shared by the discontinued Minolta Maxxum cameras.  It is not intended for use with Sony's "full frame" digital SLR cameras, or for any film-based Minolta Maxxum cameras.

With a wide angle viewing range of 102.4-63.8°, this lens can empower a photographer to produce creative images with exaggerated perspective.  Its Super Multi-Layer coating reduces flare and ghosting, and a HSM autofocus motor provides quiet operation, high speed, and perhaps most important the ability to manually override focus position at any time.

The 10-20 f/3.5 EX DC HSM incorporates an inner focusing system to eliminate front lens rotation, which also makes the lens able to use an included petal-type bayonet hood to eliminate extraneous light from striking the front of the optic.  Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass element provide excellent color fidelity, and 4 aspherical lens elements provide correction for common distortions.

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

Note! Vignetting will occur if the lens is used with 35mm SLR cameras or digital cameras with image sensors larger than APS-C size

Super-Wide
Broad 10-20mm zoom range is ideally suited to tight interiors or expansive landscapes with "APS-C" type digital SLRs
High Image Quality
Two ELD (Extraordinary Low Dispersion) glass elements, one SLD (Special Low Dispersion) glass element, and 4 aspherical lens elements help render undistorted scenes with true color
Fast and Silent AF
Sigma's best HSM autofocus allows for quick operation that's barely audible, along with fulltime manual override
EX Build Quality
Sigma "EX" lenses feature robust construction appropriate for demanding professional use, and are backed with a 4-year warranty against manufacturer defects for USA customers
Made in Japan
The 10-20 f/3.5 EX DC HSM is made in Sigma's Japanese factory
Performance
Focal Length 10 - 20 mm
Aperture Maximum: f/3.5
Minimum: f/22
Camera Mount Type Sony Alpha, Minolta AF
Format Compatibility DSLR (APS-C Sensor)
Angle of View 102.4° - 63.8°
Minimum Focus Distance 9.4" (23.88 cm)
Magnification 0.15x
Maximum Reproduction Ratio 1:6.6
Groups/Elements 10/13
Diaphragm Blades 7
Features
Image Stabilization No
Autofocus Yes
Tripod Collar No
Physical
Filter Thread 82 mm
Dimensions (DxL) Approx. 3.4 x 3.5" (8.64 x 8.89 cm)
Weight 1.14 lb (520 g)

REVIEW SNAPSHOT®

by PowerReviews
Sigma10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens for Sony Alpha
 
4.5

(based on 6 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Fast / accurate auto-focus (4)
  • Consistent output (3)
  • Easily interchangeable (3)
  • Strong construction (3)

Cons

    Best Uses

    • Landscape/scenery (4)
      • Reviewer Profile:
      • Photo enthusiast (4)
      • Was this a gift?:
      • No (4)

    Reviewed by 6 customers

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    Displaying reviews 1-6

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    5.0

    Great Lense

    By Tim

    from Seattle

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Easily Interchangeable
    • Fast / accurate auto-focus
    • Rugged
    • Strong Construction

    Cons

      Best Uses

      • Landscape/Scenery

      Comments about Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens for Sony Alpha:

      Had this now for a few weeks...works great. No issues.

      • Was this a gift?:
      • Yes

      Share this review

       
      5.0

      Nice Lenses for a crop-camera

      By SwissFall

      from Berne, Switzerland

      About Me Semi-pro Photographer

      Verified Buyer

      Pros

      • Easily Interchangeable
      • Fast / accurate auto-focus
      • Lightweight
      • Strong Construction

      Cons

        Best Uses

        • Landscape/Scenery

        Comments about Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens for Sony Alpha:

        Works smoothly with my Sony Alpha700; good picture quality

        • Was this a gift?:
        • No

        Share this review

        (1 of 1 customers found this review helpful)

         
        4.0

        Nice lens way above kit lens quality

        By Central PA

        from Central Pennsylvania

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Consistent Output

        Cons

        • Slow Focus

        Best Uses

          Comments about Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens for Sony Alpha:

          I am a photo enthusiest and wanted an ultra-wide zoom. This one suits me well. It is relativly fast for a mid-price lens and the apeture does not change with zoom.

          On my Sony A100 it does hunt to focus in lower light but easy to switch to manual in these instances.

          Overall I am very pleased with my purchase.

          • Was this a gift?:
          • No

          Share this review

          (1 of 1 customers found this review helpful)

           
          4.0

          strongly recommended

          By Rui the dropper

          from Dublin, OH

          About Me Photo Enthusiast

          Verified Buyer

          Pros

          • Consistent Output
          • Fast / accurate auto-focus
          • Strong Construction

          Cons

            Best Uses

            • Indoors/Low Light
            • Landscape/Scenery

            Comments about Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens for Sony Alpha:

            Landscapes,portraits. Have only used it couple of days so I´ve not seen any disvantages yet

            • Was this a gift?:
            • No

            Share this review

            (2 of 2 customers found this review helpful)

             
            5.0

            Excellent Lens

            By Oli

            from England

            About Me Photo Enthusiast

            Verified Buyer

            Pros

            • Easily Interchangeable

            Cons

              Best Uses

              • Landscape/Scenery

              Comments about Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens for Sony Alpha:

              Bought whilst on holiday, got some wonderful photos around New York.
              Good autofocus and easy manual as well. Excellent wide angle field of view which works well with the alpha.
              Less good: Can only take 1 screw filter to the front without vignetteing.

              • Was this a gift?:
              • No

              Share this review

              (5 of 13 customers found this review helpful)

               
              4.0

              Great Wide Angle Lens

              By Derek P. Miller

              from New York, NY

              About Me Semi-Professional

              Verified Reviewer

              Pros

              • Consistent Output
              • Lightweight
              • Quick Focus

              Cons

                Best Uses

                • Landscape Photography
                • Night Photography

                Comments about Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens for Sony Alpha:

                This is my second Sigma lens. I bought it primarily for landscapes.

                The 3.5 throughout is what pulled me to this lens over the similar f4 -5.6 version.

                I have yet to really put this lens through its paces, but so far I am very satisfied.

                Share this review

                Displaying reviews 1-6

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                What's in the Box

                Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens for Sony Alpha
                • Lens Hood
                • Front & Rear Lens Caps
                • 1-Year International Warranty
                • 4-Year USA Warranty
                 
                 
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