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

    • Original: $649.00
    • Save: $32.45
  • Price: $616.55
  • GBP 393.65
  • B&H # SI102035P
  • Mfr# 202109

Product Highlights

  • Zoom Super Wide Angle
  • Two ELD Glass Elements
  • Fast and Silent HSM AF
  • Robust Construction
  • Made in Japan

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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 the Pentax lens mount. It is not intended for use in "full frame" digital SLR cameras, or for any film-based 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. The HSM autofocus motor provides quiet, high speed operation. You can also shoot with manual focus.

The 10-20 f/3.5 EX DC HSM incorporates an inner focusing system to eliminate front lens rotation, which enables the lens to use the 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 Pentax K
Format Compatibility Pentax Digital (APS-C)
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 Pentax
 
5.0

(based on 5 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Fast / accurate auto-focus (5)
  • Consistent output (4)
  • Easily interchangeable (4)

Cons

    Best Uses

    • Landscape/scenery (5)
    • Low light (4)
      • Reviewer Profile:
      • Photo enthusiast (3)
      • Was this a gift?:
      • No (3)

    Reviewed by 5 customers

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    Displaying reviews 1-5

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    (1 of 1 customers found this review helpful)

     
    5.0

    Very good lens for an advanced amateur

    By BobE

    from New York

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Consistent Output
    • Easily Interchangeable
    • Fast / accurate auto-focus
    • Nice Bokeh

    Cons

    • Heavy

    Best Uses

    • Indoors/Low Light
    • Landscape/Scenery

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

    As a somewhat advanced amateur, I appreciate the added scope in focal length that this wide angle, rectalinear lens lends to my 'kit,' which now include this 10mm-20mm, 17mm-70mm, 50mm-200mm, and 300mm. I use a Pentax SLR and the Sigma lenses make a fine and economical contribution.

    The constant f/3.5 aperture provides good lower-light (fog for instance) capability with focal flexability for composing a wide landscape scene. I have found the results clear and cridp, with very good contrast that alows flexibility in post processing.

    All in all, I like this lens a lot and consider it a staple of my personal lens choices. A good value--not the least expensive wide angle, but a fine value for my Pentax given its constant aperture.

    • Was this a gift?:
    • Yes

    Share this review

     
    5.0

    A high quality fun lens to use

    By Garfish of Earth

    from The Great Pacific Northwest

    About Me Photo Enthusiast

    Verified Buyer

    Pros

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

    Cons

    • Heavy

    Best Uses

    • Indoors/Low Light
    • Landscape/Scenery
    • Night Photography

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

    I shoot a lot at our local boat basin/marina and when on the docks shooting is tough because the boats are packed in pretty tightly. Well, this lens really opens things up and makes individual "boat portraits" not only possible but also exciting-- provides interesting perspective distortion. One has to get used to that and use it as appropriate. It also makes a useful landscape lens when a good foreground can be found. Finally, it really opens up enclosed spaces, i.e. interiors. Curvilinear (barrel) distortionis only slight-moderate. This lens is good sized w/ 82mm filter, and on the heavy side, but balances well on a dslr, and it is well built.

    • Was this a gift?:
    • No

    Share this review

     
    5.0

    I love it

    By stian

    from san francisco

    About Me Semi-pro Photographer

    Pros

    • Durable
    • Fast / accurate auto-focus

    Cons

      Best Uses

      • Landscape/Scenery
      • Parties
      • Small rooms

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

      really great for expanding space.
      I use it as a shoot from the hip lens at parties.
      quiet and fast auto focus
      nice construction.. built to last.
      very fun lens!

      • Was this a gift?:
      • No

      Share this review

       
      5.0

      ...

      By Ev

      from Chilliwack, B.C.

      About Me Photo Enthusiast

      Verified Buyer

      Pros

      • Consistent Output
      • Easily Interchangeable
      • Fast / accurate auto-focus
      • Lightweight

      Cons

        Best Uses

        • Indoors/Low Light
        • Landscape/Scenery
        • Macro Photography
        • Weddings/Events

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

        [...]I like to take family groupings and floral gardens and already this lens has performed flawlessly. I have been more than satisfied with how smooth it functions giving me some great photos.

        • Was this a gift?:
        • No

        Share this review

        (3 of 3 customers found this review helpful)

         
        5.0

        No regrets buying this lens!

        By Puma

        from Windsor, CT

        About Me Semi-pro Photographer

        Verified Buyer

        Pros

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

        Cons

          Best Uses

          • Indoors/Low Light
          • Landscape/Scenery
          • Night Photography
          • Wildlife Photos

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

          This lens is absolutely great for scenery and landscape. I did a lot of research for a good wide-angle lens and for the price this lens was definitely my favorite. It makes any picture look more artistic, use it with any subject! I almost never take it off my camera.

          Share this review

          Displaying reviews 1-5

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          What's in the Box

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