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Sigma Telephoto 70mm f/2.8 EX DG Macro Autofocus Lens for Pentax AF

B&H # SI7028MDGPA MFR # 270109
In Stock
Order in the next 00:00:00 hours to ship Today

You Pay: $449.00

Questions? Ask our experts:

The Sigma Macro 70mm f/2.8 EX DG Lens is a medium telephoto macro lens which is ideal for both digital and 35mm film SLR cameras. The 70mm focal length gives an equivalent field of view to the popular 105mm macro lens when used on digital SLR cameras with an APS-C size image sensor.

The design of this lens makes it suitable for taking pictures in all situations, from infinity to 1:1 macro, both with natural light conditions or flash.

A Special Low Dispersion (SLD) lens and two high refractive index SLD lenses provide correction for all types of aberrations and produce an exceptional level of optical performance.
Sigma's super multi-layer lens coating reduces flare and ghosting, and helps create a natural color balance.
The floating focus system provides extremely high optical performance from infinity to 1:1 Macro.
A Focus Limiter Switch in incorporated on the lens, improving the speed and accuracy of autofocus by limiting the focus range.
UPC: 085126270605
Performance
Focal Length 70mm
Aperture Maximum: f/2.8
Minimum: f/22
Camera Mount Type Pentax K
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Pentax Digital (APS-C)
Angle of View 34.3°
Minimum Focus Distance 10.1" (25.65 cm)
Magnification 1x
Maximum Reproduction Ratio 1:1
Elements/Groups 10/9
Diaphragm Blades 9
Features
Image Stabilization No
Autofocus Yes
Tripod Collar No
Physical
Filter Thread 62 mm
Dimensions (DxL) Approx. 3.0 x 3.7" (7.62 x 9.40 cm)
Weight 1.16 lb (525 g)
Packaging Info
Package Weight 1.4 lb
Box Dimensions (LxWxH) 7.087 x 4.961 x 4.803"
Sigma Telephoto 70mm f/2.8 EX DG Macro Autofocus Lens for Pentax AF
  • Front & Rear Lens Caps
  • Lens Hood (screw-in)
  • 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
    Sigma70mm f/2.8 EX DG Macro AF Lens for Pentax AF
     
    4.8

    (based on 12 reviews)

    Ratings Distribution

    • 5 Stars

       

      (9)

    • 4 Stars

       

      (3)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

    • Consistent output (6)
    • Strong construction (6)
    • Durable (5)
    • Nice bokeh (5)
    • Easily interchangeable (3)

    Cons

    No Cons

    Best Uses

    • Macro photography (8)
    • Portraits (5)
    • Weddings (4)
    • Landscape/scenery (3)
    • Low light (3)
      • Reviewer Profile:
      • Photo enthusiast (5)
      • Was this a gift?:
      • No (10)

    Reviewed by 12 customers

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    Displaying reviews 1-12

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    5.0

    A new dimension of fun

    By JB

    from Foristell, MO

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Consistent Output
    • Durable
    • Nice Bokeh
    • Rugged
    • Strong Construction

    Cons

      Best Uses

      • Indoors/Low Light
      • Macro Photography

      Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

      While it is true that it is a macro lens, it is also a good choice for a portrait lens. It is sharp and the colors are excellent.

      It is a learning curve for macro and opens possibilities for different shots.

      • Was this a gift?:
      • No

      Share this review

      (0 of 1 customers found this review helpful)

       
      4.0

      Good Lens for the Money

      By pastjay

      from Philadelphia, PA

      About Me Pro Photographer

      Verified Buyer

      Pros

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

      Cons

      • Diffraction At F22

      Best Uses

      • Landscape/Scenery
      • Macro Photography
      • Portraits

      Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

      I'd heard a lot of good things about this lens from friends who's opinions I respect so I bought this to do copy work. Haven't gotten to that yet; took it out today for the first time to shoot bare trees, bracketing to see the sharpness at various apertures. It was an unscientific field test. Not that it's necessary for copywork but f/22 is mushier than I hoped it would be; I'd not go lower than f/16 which is markedly sharper. f/8 is terriffic, as I'd expected, and the lens performs well wide open. I haven't yet used it in its macro capacity but I'd keep it around f/8 anyway.

      Nice weight and heft; feels solid but not too heavy to hand hold. I was surprised the lens hood screws in and doesn't bayonet on; the stock lens cap doesn't fit with the hood attached.

      Outside of those minor issues I think this is a good lens for the price

      • Was this a gift?:
      • No

      Share this review

       
      4.0

      Sharp lens!

      By C.

      from Ontario, Canada

      Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

      Still learning the lens, but I'm really happy with this purchase. Sharp images. Focus can be slow but if you're shooting macro on a tripod it's not a big concern.

      Share this review

       
      4.0

      First Quality lens Purchase

      By Issaj

      from Northern, NJ

      Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

      This my first quality prime lens purchase. I am just blown away by the solid construction and build of this lens. No cheap feeling here.OK, sharp sharp sharp, great color rendition. Auto focus alittle loud, and it hunts some in low light. Not a classic potrait length, on crop sensor but in the range. You can't go wrong at this price.

      Share this review

       
      5.0

      What's not to like?

      By bschriver11

      from Barton,Md

      About Me Photo Enthusiast

      Verified Buyer

      Pros

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

      Cons

        Best Uses

        • Indoors/Low Light
        • Landscape/Scenery
        • Sports/Action
        • Weddings/Events

        Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

        I wanted a fairly fast fixed focal lens that is sharp wide open for low light shooting and could also be used for portraits and this lens does the job and the macro is an added bonus.Just a very good all around lens.It is very sharp right from f/2.8 with good color and fast focus when using the focus limiter.The build quality is very good,just a great lens in this price range.

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        I would buy this product again

        By goliath

        from quéebec, canada

        About Me Semi-pro Photographer

        Verified Buyer

        Pros

        • Consistent Output
        • Durable
        • Easily Interchangeable
        • Nice Bokeh
        • Strong Construction

        Cons

        • Slow Focus

        Best Uses

        • Indoors/Low Light
        • Macro Photography
        • Night Photography
        • Weddings/Events

        Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

        A great product, I would recommend this to a friend

        • Was this a gift?:
        • No

        Share this review

        (1 of 1 customers found this review helpful)

         
        5.0

        Very Impressed!

        By NorthBob

        from Rollinsford, NH

        About Me Photo Enthusiast

        Pros

        • Consistent Output
        • Easily Interchangeable
        • Rugged

        Cons

          Best Uses

            Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

            I bought this lens from B&H 2 months ago and am very happy with it's performance. The clarity of detail in close ups of people is amazing. I set it up on a tripod near my bird feeder and have gotten fantastic pictures using a remote control even at ISO 3200 with my Pentax K-30. I have also taken many extremely close up shots of flowers to test the Macro capability and find this lens easily up to the task. It is solidly built and comes in a nice (not cheap) zippered case. What's not to like?

            • Was this a gift?:
            • No

            Share this review

            (1 of 1 customers found this review helpful)

             
            5.0

            Solid performer

            By Timid

            from Cape Town, South Africa

            About Me Photo Enthusiast

            Verified Buyer

            Pros

            • Solid
            • Strong Construction

            Cons

              Best Uses

              • Macro Photography
              • Portraits
              • Weddings/Events

              Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

              While this is a macro lens, it it good for all round use. 70mm is ideal for portraits. It is solidly built and performs well. The only strange feature is the metal screw on lens hood which prevents you from using the lens cap. The focus limiter can be used either to limit it to close focus or for normal focus. Used for normal focus, the 70mm can be used without focus hunting

              • Was this a gift?:
              • No

              Share this review

              (2 of 2 customers found this review helpful)

               
              5.0

              Art!

              By Roadrunnerdeluxe

              from Oceanside, CA

              About Me Semi-pro Photographer

              Verified Buyer

              Pros

              • Consistent Output
              • Great colors
              • Nice Bokeh
              • Superb bokeh
              • Very sharp wide open

              Cons

                Best Uses

                • Landscape/Scenery
                • Macro Photography
                • Portraits
                • Product Photography
                • Street photography
                • Wildlife Photos

                Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

                Having owned this lens only for a short time I have to say the "aaaah-moments" have been a plenty. A close up shot of some flowers turns into a piece of art with this lens. The bokeh appears painted it is so smooth and ethereal. On the other hand the macro capability is so outstanding, I was able to make out my own reflection in the tip of a ballpoint pen.

                • Was this a gift?:
                • No

                Share this review

                (4 of 5 customers found this review helpful)

                 
                5.0

                Excellent macro & great portrait lens

                By TW

                from NE Ohio

                About Me Photo Enthusiast

                Pros

                • Consistent Output
                • Durable
                • Fast / accurate auto-focus
                • Nice Bokeh
                • Rugged
                • Strong Construction

                Cons

                  Best Uses

                  • Macro Photography
                  • Video
                  • Weddings/Events

                  Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

                  I have been looking to replace my Pentax 100mm f/3.5 for years but found the Sigma 105 or the Tamron 90mm to be not much better than the Pentax.

                  This Sigma is indeed amazing, sharp wide open at f/2.8. The back ground is smooth and pleasing. This lens will likely serve two purposes - macro and portrait. While conventional portrait lenses (70 - 85) may need to stop down, they generally still have one stop advantage over this Sigma. This is where PP will do its magic. Extreme low light condition is another weakness but I have not yet encountered a situation where f/2.8 is insufficient.

                  Construction is way better than the Pentax, although the Pentax has held up well since I bought it more than 12 years ago. With the Pentax 100m as my reference, I found the Sigma to have better, faster, and quieter focus. The only thing I wish for is f/2.0 but then the price will likely double.

                  The main issue is that I will have to adjust my thinking with this wider FOV. But that is part of the fun.

                  • Was this a gift?:
                  • No

                  Share this review

                  (4 of 4 customers found this review helpful)

                   
                  5.0

                  Lovely Sharp Lens

                  By Les

                  from Port Elizabeth, South Africa

                  About Me Semi-Professional

                  Verified Buyer

                  Pros

                  • Easy To Use
                  • Lightweight

                  Cons

                    Best Uses

                    • Macro Photography
                    • Portraits

                    Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

                    I will use this for macro work and portraits.

                    • Was this a gift?:
                    • No

                    Share this review

                    (5 of 5 customers found this review helpful)

                     
                    5.0

                    As sharp as advertised

                    By Joel

                    from York PA

                    About Me Hobbyist/Enthusiast

                    Verified Buyer

                    Pros

                    • Durable
                    • Metal hood
                    • Nice finish

                    Cons

                      Best Uses

                      • Everyday use
                      • Home
                      • Landscape Photography
                      • Macro Photography
                      • Portraits
                      • Studio
                      • Traveling

                      Comments about Sigma 70mm f/2.8 EX DG Macro AF Lens for Pentax AF:

                      I use this for nature macro and portraits.
                      The manual focus is smooth and allows for fine tuning.
                      Due to my ignorance I thought the closest focusing distance was from the end of the lens but I think its the distance from the sensor so if you want to take lots of close up insect shots you may want a 100mm or above to give you some breathing room.
                      The limiter swith is a great feature and was the main reason I didn't go with the Pentax 100mm macro lens. Sigma advertises this as a 1:1 but is more like 1:.9.

                      • Was this a gift?:
                      • No

                      Share this review

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