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Tamron 2x Autofocus Teleconverter for Canon EOS

B&H # TA2XCAF MFR # AF20C-700
Tamron 2x AF Teleconverter for Canon EOS

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The 2x teleconverter (also known as a tele-extender) will multiply the focal length of the existing lens by 2x, and will cut back the amount of light by 2 f/stops. For example, using a 2x teleconverter with a 300 mm lens will effectively increase the focal length to 600 mm. A lens set to f/2.8 will now be f/5.6.

Teleconverters are not recommended for lenses wider than 50mm, e.g. 28-105mm. However, full AF operation is only possible with lenses with open aperture of f/2.8 or brighter. Please be aware that AF will work properly only if there is enough light and contrast on the subject to activate the camera's AF sensors. Manual focusing is recommended when using lenses with smaller open f-stop value than those given above. This teleconverter is compatible with EF lenses only.

Multi-coated elements result in crisper images
UPC: 725211207016
Magnification 2x
Lens Elements/Groups 4/4
Length 1" (26mm)
Diameter 2.6" (66.5mm)
Weight 8 oz (228 g)
Packaging Info
Package Weight 0.55 lb
Box Dimensions (LxWxH) 3.4 x 3.2 x 3.1"
Tamron 2x Autofocus Teleconverter for Canon EOS
  • Front & Rear Caps
  • Pouch
  • Limited 1-Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Tamron2x AF Teleconverter for Canon EOS
     
    3.3

    (based on 10 reviews)

    Ratings Distribution

    • 5 Stars

       

      (2)

    • 4 Stars

       

      (5)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (3)

    63%

    of respondents would recommend this to a friend.

    Pros

    • Easily interchangeable (6)
    • Lightweight (5)
    • Durable (4)
    • Strong construction (4)

    Cons

    No Cons

    Best Uses

    • Landscape/scenery (5)
    • Sports/action (3)
    • Wildlife photos (3)
      • Reviewer Profile:
      • Photo enthusiast (3), Semi-pro photographer (3)
      • Was this a gift?:
      • No (5)

    Most Liked Positive Review

     

    Good product against costlier lenses

    Well, the converter does the work very well. Reduces little brightness ofcourse, but still can increase by editing in softwares. Good for those against costlier lenses in the market. Autofocus actually don't...Read complete review

    Well, the converter does the work very well. Reduces little brightness ofcourse, but still can increase by editing in softwares. Good for those against costlier lenses in the market. Autofocus actually don't work when connected with Tamron 70-300mm lens, have to focus manually.

    VS

    Most Liked Negative Review

     

    It didn't fit my camera!!

    It's says right in the title that it is for the Canon EOS. I managed to get it on the camera, but I couldn't get the lenses attached. Very frustrating!! Plus I...Read complete review

    It's says right in the title that it is for the Canon EOS. I managed to get it on the camera, but I couldn't get the lenses attached. Very frustrating!! Plus I had to pay shipping on this product twice. Not a happy customer.

    Reviewed by 10 customers

    Displaying reviews 1-10

    Back to top

     
    4.0

    Does what it needs to do

    By simarc

    from NYC

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Durable
    • Easily Interchangeable
    • Lightweight
    • Rugged
    • Strong Construction

    Cons

    • Poor in Low Light
    • Slow Focus

    Best Uses

    • Landscape/Scenery
    • Wildlife Photos

    Comments about Tamron 2x AF Teleconverter for Canon EOS:

    It will: Double your distance as well as your F-stop, while autofocusing in good light.
    It won't: Focus well in stadium light or very quickly.
    Still, I needed my 70-300 to be a 140-600 and it served that purpose

    • Was this a gift?:
    • No

    Share this reviewHelp Icon

    (1 of 1 customers found this review helpful)

     
    5.0

    makes things come close

    By jogtrot

    from Iowa

    Comments about Tamron 2x AF Teleconverter for Canon EOS:

    Nice quality, works well, exactly as advertised.

    Share this reviewHelp Icon

    (1 of 1 customers found this review helpful)

     
    5.0

    Great product, Great price !!

    By Skosh

    from Las Vegas, Nevada

    About Me Semi-pro Photographer

    Verified Buyer

    Pros

    • Durable
    • Easily Interchangeable
    • Fast / accurate auto-focus
    • Lightweight

    Cons

      Best Uses

      • Landscape/Scenery
      • Sports/Action
      • Wildlife Photos

      Comments about Tamron 2x AF Teleconverter for Canon EOS:

      small, cheap, great tool

      • Was this a gift?:
      • No

      Share this reviewHelp Icon

      (0 of 11 customers found this review helpful)

       
      1.0

      Save your money

      By Fox

      from Puerto Vallara, Mexico

      About Me Semi-pro Photographer

      Verified Buyer

      Pros

      • Easily Interchangeable

      Cons

      • Blurry Focus

      Best Uses

      • Landscape/Scenery

      Comments about Tamron 2x AF Teleconverter for Canon EOS:

      My T2i with a Tamron 18-270 lens will not autofocus past about half zoom. Disappointing to say the least.

      • Was this a gift?:
      • No

      Share this reviewHelp Icon

      (8 of 8 customers found this review helpful)

       
      4.0

      Good product against costlier lenses

      By Neel

      from Pune, India

      About Me Photo Enthusiast

      Verified Buyer

      Pros

      • Consistent Output
      • Durable
      • Easily Interchangeable
      • Lightweight
      • Strong Construction

      Cons

      • Poor in Low Light
      • Slow Focus

      Best Uses

      • Landscape/Scenery
      • Sports/Action
      • Weddings/Events
      • Wildlife Photos

      Comments about Tamron 2x AF Teleconverter for Canon EOS:

      Well, the converter does the work very well. Reduces little brightness ofcourse, but still can increase by editing in softwares. Good for those against costlier lenses in the market. Autofocus actually don't work when connected with Tamron 70-300mm lens, have to focus manually.

      • Was this a gift?:
      • No

      Share this reviewHelp Icon

      (3 of 19 customers found this review helpful)

       
      1.0

      It didn't fit my camera!!

      By Mark

      from Calgary, Alberta

      About Me Photo Enthusiast

      Verified Buyer

      Comments about Tamron 2x AF Teleconverter for Canon EOS:

      It's says right in the title that it is for the Canon EOS. I managed to get it on the camera, but I couldn't get the lenses attached. Very frustrating!! Plus I had to pay shipping on this product twice. Not a happy customer.

      • Was this a gift?:
      • Yes

      Share this reviewHelp Icon

      (10 of 10 customers found this review helpful)

       
      4.0

      Cheap way to gain some mm

      By NOLA Sports Photography

      from Metro New Orleans

      About Me Semi-pro Photographer

      Verified Buyer

      Pros

      • Easily Interchangeable
      • Strong Construction

      Cons

        Best Uses

        • Landscape/Scenery
        • Sports/Action

        Comments about Tamron 2x AF Teleconverter for Canon EOS:

        I use this on my Tamron 70-200 lens and it does a great job for outdoor action photography. Im saving up for the Canon 300 2.8 IS lens but needed some distance now. It's not the 300 but my images came out just fine. Monopod is a must, but I got the images I needed and the client was pleased.

        • Was this a gift?:
        • No

        Share this reviewHelp Icon

        (11 of 13 customers found this review helpful)

         
        4.0

        Live up to my expectations

        By Ed

        from Absecon, NJ

        About Me Getting started

        Verified Buyer

        Pros

        • Consistent Output
        • Durable
        • Easily Interchangeable
        • Lightweight
        • Rugged
        • Strong Construction

        Cons

          Best Uses

          • Wildlife

          Comments about Tamron 2x AF Teleconverter for Canon EOS:

          The 2x AF Teleconverter for my Cannon EOS by Tamron has lived up to my expectations. It does the intended job very well. [...]

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          (2 of 27 customers found this review helpful)

           
          1.0

          It's very slow to focus.

          By N/A

          from Texas

          About Me Professional

          Verified Buyer

          Pros

            Cons

            • Difficult to Use

            Best Uses

              Comments about Tamron 2x AF Teleconverter for Canon EOS:

              It's very slow to focus and really slows the shutter. I don't care for it at all.

              Share this reviewHelp Icon

              (10 of 12 customers found this review helpful)

               
              4.0

              Great little teleconverter

              By marketingJoe

              from Albany, Oregon

              About Me Hobbyist/Enthusiast

              Verified Buyer

              Pros

              • Easy to Use
              • Improves Function
              • Lightweight

              Cons

                Best Uses

                • Everyday Use

                Comments about Tamron 2x AF Teleconverter for Canon EOS:

                Easy to use, easy to change out, great little teleconverter.

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