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Sigma 17-50mm f/2.8 EX DC HSM Zoom Lens for Sony DSLRs with APS-C Sensors

B&H # SI175028S MFR # 58C205
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Product Highlights

  • For Sony/Minolta DSLR with APS-C Sensors
  • Aperture Range: f/2.8-22
  • 35mm Focal Length Equivalent: 25.5-75mm
  • Hyper-Sonic Motor for Quiet/Fast AF
  • Minimum Focus Distance of 11" (28cm)
  • Ultra Compact (3.6", 91.8mm)
  • Multi-Layered Lens Coating
  • Accepts 77mm Filters
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The Sigma 17-50mm f/2.8 EX DC HSM Zoom Lens for Sony DSLRs with APS-C Sensors is a versatile, lightweight, and compact lens designed specifically for Sony A-mount and Minolta digital SLR cameras with APS-C size sensors. The lens has a fast f/2.8 maximum aperture throughout the entire zoom range and its 35mm focal length equivalency is 25.5 - 75mm. It features a construction of 17 elements in 13 groups with glass that corrects for aberrations and multi-layered lens coating to minimize flare and ghosting. It produces high contrast, sharp images throughout the zoom range even at its maximum aperture.

This lens is equipped with Sigma's Hyper-Sonic Motor (HSM) which provides fast and quiet auto focusing, which is ideal when shooting video.

This Sigma 17-50mm f/2.8 lens does not contain the OS (Optical Stabilization) designation because Sony Alpha DSLR's equip their camera bodies with image stabilization technology. 

Note: Autofocus does not work properly with the Sony Alpha SLT-A65 and SLT-A77 DSLR digital cameras. A free update is available from Sigma to correct this phenomenon and future production of this lens will be fully compatible with these cameras.

This lens is for use with Sony digital cameras with APS-C size sensors only. Its images will contain substantial vignetting when used with full frame cameras.
The DC designation on the barrel means that this is a special lens designed so that the image circle matches the smaller size (APS-C) of the image sensor of your digital SLR. Its specialized design gives this lens the ideal properties for APS-C digital cameras, including a compact size and lightweight construction.
Constructed with 17 elements in 13 groups, it features FLD ("F" Low Dispersion) glass which is the highest level low dispersion glass available with extremely high light transmission. FLD glass along with aspherical lens elements offer reduced aberrations and superior optical performance.
An f/2.8 maximum aperture throughout the zoom range provides shallow depth of field focus and offers sharp imaging at fast shutter speeds even in low light.
Its HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus.
Performance
Focal Length 17 - 50mm
Comparable 35mm Focal Length: 25.5 - 75 mm
Aperture Maximum: f/2.8
Minimum: f/22
Camera Mount Type Sony Alpha, Minolta AF
Format Compatibility DSLR (APS-C Sensor)
Angle of View 72.4° - 27.9°
Minimum Focus Distance 11" (27.94 cm)
Magnification 0.2x
Maximum Reproduction Ratio 1:5
Elements/Groups 17/13
Diaphragm Blades 7
Features
Image Stabilization No
Autofocus Yes
Tripod Collar No
Environmental
Physical
Filter Thread 77 mm
Dimensions (DxL) Approx. 3.3 x 3.6" (8.38 x 9.14 cm)
Weight 19.93 oz (565 g)
Sigma 17-50mm f/2.8 EX DC HSM Zoom Lens for Sony DSLRs with APS-C Sensors
  • Front Lens Cap
  • Rear Lens Cap
  • Lens Hood
  • Carrying Case
  • Limited 1-Year North and South America Warranty Against Manufacturing and Workmanship Defects.
  • Limited 3-Year U.S.A. Extended Warranty Extension Against Manufacturing and Workmanship Defects.
  • REVIEW SNAPSHOT®

    by PowerReviews
    Sigma17-50mm f/2.8 EX DC HSM Zoom Lens for Sony DSLRs with APS-C Sensors
     
    4.5

    (based on 4 reviews)

    Ratings Distribution

    • 5 Stars

       

      (2)

    • 4 Stars

       

      (2)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    Pros

    • Fast / accurate auto-focus (3)
    • Strong construction (3)

    Cons

      Best Uses

          • Was this a gift?:
          • No (4)

        Reviewed by 4 customers

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        Displaying reviews 1-4

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        (1 of 1 customers found this review helpful)

         
        5.0

        Great Lense for a Great Price

        By Mr. Smith

        from Houston

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Awesome Image Quality - N
        • Durable
        • Easily Interchangeable
        • Fast / accurate auto-focus
        • Great image quality
        • Negligible Aberration
        • Negligible Edge Blur
        • Nice Bokeh
        • Quiet
        • Rugged
        • Strong Construction

        Cons

        • Focus Ring Is Stiff
        • Heavy

        Best Uses

        • Landscape/Scenery
        • Night Photography
        • Weddings/Events

        Comments about Sigma 17-50mm f/2.8 EX DC HSM Zoom Lens for Sony DSLRs with APS-C Sensors:

        I'm mostly using it for landscapes, night photography, and portraits. For the price, its one of the best lenses I've ever used.

        • Was this a gift?:
        • No

        Share this review

         
        4.0

        Quick zoom and focus

        By Jay

        from Port St. Joe, FL

        About Me Semi-pro Photographer

        Verified Buyer

        Pros

        • Fast / accurate auto-focus
        • Strong Construction

        Cons

          Best Uses

          • Sports/Action

          Comments about Sigma 17-50mm f/2.8 EX DC HSM Zoom Lens for Sony DSLRs with APS-C Sensors:

          I use this lens for indoor sports photography. Particularly for basketball and volleyball. It was a quick zoom and quick focus. Mine is paired with a Sony A58.

          • Was this a gift?:
          • No

          Share this review

          (1 of 2 customers found this review helpful)

           
          4.0

          Image qualtiy great, but autofocus bad

          By Travelin' man

          from Texas

          About Me Photo Enthusiast

          Verified Reviewer

          Pros

          • Strong Construction

          Cons

          • Blurry Focus

          Best Uses

            Comments about Sigma 17-50mm f/2.8 EX DC HSM Zoom Lens for Sony DSLRs with APS-C Sensors:

            I just bought this lens for the sony a65 camera. In manual focus, with focus peaking on, this lens is amazing. The images are extremely sharp and beautiful. However, autofocus is off big time. The images are horrible with autofocus. 1/6 times the image will look sharp enough to use. I am thinking if I should send sigma my camera and lens to adjust it for me. The price savings was better compared to the sony 16-50 lens so I'm going to keep it. I don't regret buying this lens, but for others, keep in mind there can be an autofocus problem with this lens and sony cameras. ........

            • Was this a gift?:
            • No

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            (2 of 2 customers found this review helpful)

             
            5.0

            Solid all-around lens for APS sized dSLR

            By expat in Quebec

            from Quebec, Canada

            About Me Semi-pro Photographer

            Verified Buyer

            Pros

            • Consistent Output
            • Fast / accurate auto-focus
            • Lightweight
            • Nice Bokeh

            Cons

              Best Uses

                Comments about Sigma 17-50mm f/2.8 EX DC HSM Zoom Lens for Sony DSLRs with APS-C Sensors:

                Purchased this as an upgrade to the plastic-y kit lens and have been truly impressed with its performance. Build quality is good - solid but not as massive as the Zeiss 16-80 *T and Sony 16-50 f2.8 offerings. Sharp throughout the range, with distortion and vignetting that is almost entirely correctable in post processing (DXO handles it very well).AF has been fast and accurate, with minimal 'hunting' even in low light.I also had the Tamron version but replaced it with the Sigma when the Tammy was damaged. Overall these two lenses are *extremely* close in sharpness, but I prefer the Sigma. I find it to be marginally sharper, and I prefer the way it feels in the hand over the Tamron.A few minor things I don't like - I'd like a slightly larger focus ring, and it is only possible to lock (park) the lens at the 17mm end. I'd really like the ability to lock the lens at 50mm at times. So far I haven't had any issues with lens creep, but all the same I'd like to be able to lock it at both ends of the zoom range.

                • Was this a gift?:
                • No

                Share this review

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