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Tamron 2x SP AF Pro Teleconverter for Canon EOS

B&H # TA2XPCAF Mfr # AF20PC-700
You Pay: $254.00
Product Highlights
  • Compatible With EF Lens Mount Only

The Tamron SP AF Pro teleconverter features improved optical construction, and is designed to be used with lenses that are f/2.8 and of focal lengths of 90mm or greater.

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 300mm lens will effectively increase the focal length to 600mm. A lens set to f/2.8 will now be f/5.6.

This teleconverter is not recommended for lenses wider than 90mm, e.g. 50mm, 28-105mm, etc. However, full AF operation is still 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 the EF lens mount only--not compatible with EF-S lenses.

Note! When used with lenses with smaller maximum apertures (f/4 and f/5.6, for example), there will be little difference in image quality as compared with the standard Tamron teleconverters. When used with lenses wider than 90mm, the SP teleconverters can actually compromise image quality.

Pro-series teleconverters are specifically designed and optimized for use with ultra-telephoto lenses (above 200mm) to deliver maximum resolution, contrast and color rendition without degrading any aspect of the master lens performance.
Improved optical design of 4-group/5-element for 1.4x and 4-group/7-element for 2x. Relative illumination is significantly improved resulting in better overall contrast and resolution across the entire image field.
Multi-coated elements result in crisper images.
Magnification 2x
Lens Elements/Groups 7/4
Length 1.7" (43.5mm)
Diameter 2.7" (68.5mm)
Weight 6.5 oz (184 g)
Tamron 2x SP AF Pro Teleconverter for Canon EOS
  • Front & Rear Caps
  • Pouch
  • 1-Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Tamron2x SP AF Pro Teleconverter for Canon EOS
     
    4.1

    (based on 15 reviews)

    Ratings Distribution

    • 5 Stars

       

      (8)

    • 4 Stars

       

      (5)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (2)

    87%

    of respondents would recommend this to a friend.

    Pros

    • Durable (8)
    • Consistent output (7)
    • Easily interchangeable (7)
    • Lightweight (6)
    • Fast / accurate auto-focus (4)

    Cons

      Best Uses

      • Wildlife photos (7)
      • Landscape/scenery (6)
      • Sports/action (5)
      • Macro photography (4)
        • Reviewer Profile:
        • Photo enthusiast (6)
        • Was this a gift?:
        • No (11)

      Most Liked Positive Review

       

      Happy with this purchase

      Using with a Canon 60D and Canon EF 70-300mm lens.
      Knowing going into it that this combination would not work with auto-focus ... it actually does work at times, but...Read complete review

      Using with a Canon 60D and Canon EF 70-300mm lens.
      Knowing going into it that this combination would not work with auto-focus ... it actually does work at times, but I use it on manual focus and am very happy with the same quality shots that I get without the converter, but now have the ability to get much closer shots of birds and other wildlife. Also, took some great shots of my Leonbergers (dogs) romping in the back of a field.

      VS

      Most Liked Negative Review

       

      First time sale disappointment

      I have successfully purchased many items from B&H in the past and was very satisfied, but this purchase was a disappointment. The detailed description stated it will fit a Canon EF-S lens. ...Read complete review

      I have successfully purchased many items from B&H in the past and was very satisfied, but this purchase was a disappointment. The detailed description stated it will fit a Canon EF-S lens. Once received and opened, this teleconverter would not connect to the lens. A very responsive customer service offered a return, then connected me with a sales representative. The sales rep reviewed the issue, placed me on hold, and called another distributor. Upon his return, he informed me this other distributor confirmed there is "NO" teleconverter that interfaces with the Canon EF-S lenses. If you have EF-S lenses this will not work, despite the detailed information listed on this website.

      Reviewed by 15 customers

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      Displaying reviews 1-15

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      (1 of 1 customers found this review helpful)

       
      5.0

      A Great Addition

      By Hads55

      from Cloquet, MN

      About Me Semi-pro Photographer

      Verified Buyer

      Pros

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

      Cons

        Best Uses

        • Landscape/Scenery
        • Macro Photography
        • Wildlife Photos

        Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

        I read the reviews and bought the teleconverter for my Tamron 70x200 F2.8 lens. It focuses quickly on AF and is great in manual as well. The clearity was better than I had expected and saved me from purchasing a 200x400 lens.
        I have not found any down sides to this teleconverter.

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        Works great

        By Jwplano

        from Florida

        About Me Semi-pro Photographer

        Verified Buyer

        Pros

        • Consistent Output
        • Durable

        Cons

          Best Uses

          • Landscape/Scenery
          • Wildlife Photos

          Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

          The great thing about buying this converter over the Canon 2x is that this one works with both my 70-300 and 70-200. Now on the 300mm you pretty much have to manually focus but for what and how I shoot that's ok. Auto focus on the 70-200 works just fine. I've not had any issues. I love the extra distance I can capture now? Just used it again today at a nature center preserve and it really fit my needs. . I would recommend it.

          • Was this a gift?:
          • No

          Share this review

          (2 of 2 customers found this review helpful)

           
          4.0

          Great addition to bag

          By JohnDot

          from Okalhoma City, OK

          About Me Photo Enthusiast

          Verified Buyer

          Pros

          • Easily Interchangeable
          • Lightweight

          Cons

            Best Uses

            • Landscape/Scenery
            • Sports/Action
            • Wildlife Photos

            Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

            Nice addition to combine with my Tamron f2.8 70-200 to step out a little bit further.

            • Was this a gift?:
            • No

            Share this review

            (2 of 9 customers found this review helpful)

             
            1.0

            Sadly disappointed

            By Mike

            from San Diego, CA

            About Me Photo Enthusiast

            Verified Buyer

            Pros

              Cons

              • Does not support autofocu

              Best Uses

                Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                Despite all the posted reviews describing the compatability of this extender with the 18-270 Tamron lens, it fails miserably in that the autofocus feature of the lab ceases completely with the extender. You are comdemned to manual focus!

                • Was this a gift?:
                • No

                Share this review

                (6 of 6 customers found this review helpful)

                 
                5.0

                Happy with this purchase

                By Norm-Cyder-Casey

                from Oxford, NY

                About Me Casual Photographer

                Verified Buyer

                Pros

                • Consistent Output
                • Durable
                • Easily Interchangeable
                • Lightweight
                • No lose of photo quality

                Cons

                  Best Uses

                  • Landscape/Scenery
                  • Sports/Action
                  • Wildlife Photos

                  Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                  Using with a Canon 60D and Canon EF 70-300mm lens.
                  Knowing going into it that this combination would not work with auto-focus ... it actually does work at times, but I use it on manual focus and am very happy with the same quality shots that I get without the converter, but now have the ability to get much closer shots of birds and other wildlife. Also, took some great shots of my Leonbergers (dogs) romping in the back of a field.

                  • Was this a gift?:
                  • No

                  Share this review

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  does what it should

                  By chrispy

                  from Michigan

                  About Me Pro Photographer

                  Verified Buyer

                  Pros

                  • Consistent Output
                  • Durable

                  Cons

                    Best Uses

                    • Macro Photography

                    Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                    coupled with a macro lens this teleconverter does what I need it to do...
                    expecting it to autofocus is a fools dream...

                    • Was this a gift?:
                    • No

                    Share this review

                    (4 of 15 customers found this review helpful)

                     
                    1.0

                    First time sale disappointment

                    By A New Grandpa

                    from Beloit, WI

                    About Me Photo Enthusiast

                    Verified Buyer

                    Pros

                      Cons

                      • Incorrect interface

                      Best Uses

                        Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                        I have successfully purchased many items from B&H in the past and was very satisfied, but this purchase was a disappointment. The detailed description stated it will fit a Canon EF-S lens. Once received and opened, this teleconverter would not connect to the lens. A very responsive customer service offered a return, then connected me with a sales representative. The sales rep reviewed the issue, placed me on hold, and called another distributor. Upon his return, he informed me this other distributor confirmed there is "NO" teleconverter that interfaces with the Canon EF-S lenses. If you have EF-S lenses this will not work, despite the detailed information listed on this website.

                        • Was this a gift?:
                        • No

                        Share this review

                        (4 of 4 customers found this review helpful)

                         
                        5.0

                        Excellent teleconverter

                        By Scientific Imaging

                        from Mount Laurel, NJ

                        About Me Photo Enthusiast

                        Verified Buyer

                        Pros

                        • Easily Interchangeable
                        • Lightweight
                        • Rugged

                        Cons

                          Best Uses

                          • Landscape/Scenery
                          • Wildlife Photos

                          Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                          Excellent teleconverter for Tamron 18-270 DiII. PZ antivibration works very well. AF works as long as there is enough light, but I prefer to focus manually using zoomed live-view on the Canon T3i.

                          • Was this a gift?:
                          • No

                          Share this review

                          (1 of 1 customers found this review helpful)

                           
                          5.0

                          excellent teleconverter

                          By eagle eye

                          from minneapolis mn

                          About Me Photo Enthusiast

                          Verified Buyer

                          Pros

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

                          Cons

                            Best Uses

                            • Sports/Action

                            Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                            used a tamron 300mm 2.8 lens it works amazing

                            • Was this a gift?:
                            • No

                            Share this review

                            (1 of 1 customers found this review helpful)

                             
                            4.0

                            Works better than expected

                            By Paul

                            from West Virginia

                            About Me Casual Photographer

                            Verified Buyer

                            Pros

                            • Consistent Output
                            • Easily Interchangeable

                            Cons

                            • Poor in Low Light

                            Best Uses

                            • Sports/Action
                            • Wildlife Photos

                            Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                            I mainly use the teleconverter for sports. It performed just as I expected at a golf tournament and for taking shots at the kids baseball games. Auto focus works to some extent but it performed best in manual focus mode.

                            • Was this a gift?:
                            • No

                            Share this review

                            (2 of 7 customers found this review helpful)

                             
                            4.0

                            X2 ???

                            By Topher

                            from Glenside, Pa

                            About Me Photo Enthusiast

                            Verified Buyer

                            Pros

                            • Price

                            Cons

                            • Blurry Focus
                            • It's more a X1

                            Best Uses

                            • Landscape/Scenery
                            • Wildlife Photos

                            Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                            Own a tamron 70-300mm and it works great on this lens. Wouldn't work with my Canon 18-135mm ?? 600mm is not sharp at all, auto focus is useless. I find I use it more in the 350mm to 5000mm. Remember it only doubles the quality of the lens you're using.

                            • Was this a gift?:
                            • No

                            Share this review

                            (4 of 4 customers found this review helpful)

                             
                            5.0

                            A great purchase for the money.

                            By AJ

                            from Sarasota, Florida

                            About Me Hobbyist/Enthusiast

                            Verified Buyer

                            Pros

                            • Consistent Output
                            • Easily Interchangeable
                            • Quick Focus
                            • Sharp Focus
                            • Strong Construction

                            Cons

                              Best Uses

                              • Sports/Action
                              • Wildlife

                              Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                              I wanted to be able to take photos of the alligators and other wild life in the State Park near my home here in Sarasota Florida. I felt that with the telephoto lens that I have; I just was not getting the close-ups that I wanted. Other than getting closer to my subjects which are mostly alligators (Do not recommend getting close to alligators) or buying a super telephoto lens.
                              I decided on the cheaper and safer route and bought this teleconverter.
                              I am very happy with my purchase. I have used it quite a bit and have not been disappointed.
                              I do not have anything negative to say about this product.

                              Share this review

                              (4 of 6 customers found this review helpful)

                               
                              4.0

                              good product with right lense

                              By stan

                              from chester, il.

                              About Me Semi-Professional

                              Verified Buyer

                              Pros

                              • Durable
                              • Easy to Use
                              • Lightweight

                              Cons

                              • You loose f stops

                              Best Uses

                              • Traveling

                              Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                              it had 10 pins and my lenses have 7 pins. i could not get a sharp photo in low light. it wolld have been good if i had the crrect lens.

                              Share this review

                              (9 of 9 customers found this review helpful)

                               
                              5.0

                              Tamron is the best hands down!

                              By Wes

                              from Fallbrook, California

                              About Me Professional

                              Verified Buyer

                              Pros

                              • Durable
                              • Easy to Use
                              • Improves Function
                              • Lightweight

                              Cons

                                Best Uses

                                • Everyday Use
                                • Macro Photography
                                • Traveling

                                Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                                Tamron seems to be the only lens maker that has a 2X Teleconverter that will work with THEIR 70-300 m.m. lens that will match up with a Canon digital camera. It isn't supposed to work with digital cameras but it DOES! As long as you stick with Manual Focus you will get a 140-600 m.m. zoom capability, apparently the only one on the planet. This will probably work with Nikon also but I'm not positive. When my 800 m.m. becomes a little too heavy and bulky, this combination 140-600 can be a life-saver. I very seldom use auto focus anyway for my work.

                                Share this review

                                (7 of 7 customers found this review helpful)

                                 
                                4.0

                                good solid product

                                By Steve

                                from Ohio

                                About Me Hobbyist/Enthusiast

                                Verified Buyer

                                Pros

                                • Durable
                                • Easy to Use
                                • Improves Function

                                Cons

                                  Best Uses

                                  • Historical reenactment
                                  • Macro Photography
                                  • Zoo

                                  Comments about Tamron 2x SP AF Pro Teleconverter for Canon EOS:

                                  the tamron 2x converter is good for macro shots or still shots that you need the extra focal length to help frame your subject. Keep in mind that you will lose at least two fstops and a good tripod is neccesary

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