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Pentax 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses

B&H # PE14C Mfr # 37962
In Stock
Free Expedited Shipping
Price: $596.95
Instant Savings: $100.00
You Pay: $496.95
Product Highlights
  • PENTAX HD Multi-Layer Lens Coating
  • Weather-Resistant and Dustproof Design
  • Increases Focal Length by 1.4x
  • Reduces Lens Aperture by 1 f/Stop
  • Lens's Minimum Focus Distance Retained
  • Auto Focus, Auto Aperture Retained
  • Works Seamlessly with Camera and Lens AF

The 1.4x HD PENTAX-DA AF Rear Converter AW from Ricoh is compatible with Pentax KAF2 mount lenses on select DSLR cameras. It mounts between the camera body and lens, and increases the focal length of the lens by 1.4x, while reducing the aperture by 1 f/stop. The minimum focus distance of the lens is preserved, as are auto focus and auto aperture functionality. The rear converter works flawlessly with both the camera-driven AF system and the lens-driven AF system, including that of the SDM and DC-series lenses. The camera's firmware must be updated to the latest version before using the autofocus function.

PENTAX HD Lens Coating
Treated with Pentax's exclusive multi-layer lens coating, which provides high light transmission and low reflectance for sharp, clear images free of flare and ghosting--even under adverse lighting conditions, such as backlighting.
Weather-Resistant
Durable, weather-resistant construction protects the converter and the barrels of compatible, weather-sealed lenses. Shoot worry-free in rainy or misty conditions and when subjected to sprays or splashes.
1.4x Magnification in a Compact Form Factor
Mounts between the camera body and lens and increases lens focal length by 1.4x (40%)--yet has a notably small form factor, measuring only 0.8" and weighing in at just 4.4 oz. This compact size allows you to reach out to distant subjects and capture blur-free shots more easily. Since the minimum focusing distance of the lens is retained, this converter allows you to get just as close as before--but with greater magnification for more detailed images. Keep in mind that when the converter is mounted, the lens's maximum aperture will be smaller by 1 f/stop.
Auto Focus and Aperture Functionality
Auto focus and auto aperture functionality retained when using the converter, which works flawlessly with both the camera-driven AF system and the lens-driven AF system, such as that on the SDM and DC-series lenses. The camera's firmware must be updated to the latest version before using the autofocus function.
Compatible Lenses
The converter is compatible with Pentax KAF2 mount lenses. Autofocus is possible with lenses featuring a maximum aperture of f/4 or faster.
Compatible Cameras
K-3, K-50, K-500, K-30, K-5 II, K-5 II s, K-5, K-01, K-7 and K-r.
Bundled Accessories
The DA Limited Soft Case for the HD PENTAX DA and smc PENTAX DA 70mm f/2.4 Limited lenses is supplied. Also included are the Lens Mount Cap K and Body Mount Cap K.
Magnification 1.4x
Lens Mount Pentax KAF2
Lens Elements/Groups 4/3
Light Loss 1 f/stop
Length Approx. 0.8" / 20 mm
Diameter Approx. 2.6" / 65 mm
Weight Approx. 4.4 oz / 126 g
Pentax 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses
  • 70mm DA Soft Lens Case
  • Rear Lens Cap (B) for Bayonet Mount Lenses
  • Body Mount Cap K
  • Limited 1-Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses
     
    4.9

    (based on 9 reviews)

    Ratings Distribution

    • 5 Stars

       

      (8)

    • 4 Stars

       

      (1)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

    • Easy to use (9)
    • Great picture quality (9)
    • Lightweight (9)
    • Compact (7)
    • Durable (5)

    Cons

      Best Uses

      • Wildlife photos (7)
      • Travel (6)
      • Sports/action (4)
      • Landscape/scenery (3)
        • Reviewer Profile:
        • Photo enthusiast (7)
        • Was this a gift?:
        • No (9)

      Reviewed by 9 customers

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      Displaying reviews 1-9

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      5.0

      Excellent telephoto adapter

      By Jack

      from Morgan Hill, CA

      About Me Photo Enthusiast

      Verified Buyer

      Pros

      • Durable
      • Easy to Use
      • Great Picture Quality
      • Lightweight

      Cons

        Best Uses

        • Travel
        • Wildlife Photos

        Comments about 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses:

        I get really sharp pictures with this adapter using it with my Pentax 60-250 DA* and my Sigma 150-500. Don't forget to upgrade your Pentax camera firmware to the latest level that supports this adapter. All weather is a big plus for wild life photography.

        • Was this a gift?:
        • No

        Share this review

        (0 of 3 customers found this review helpful)

         
        4.0

        Very well built, just not for me.

        By Ricardo

        from Pittsburgh, PA

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Compact
        • Durable
        • Easy to Use
        • Great Picture Quality
        • Lightweight

        Cons

          Best Uses

          • Family Photos
          • Travel

          Comments about 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses:

          I have no gripes about this teleconverter other than price. It functioned as expected and worked flawlessly with all three of my lenses, I just didn't get enough bang for my dollar. I returned it for a Sony HX400V and saved $142, while getting the zoom I really wanted.

          • Was this a gift?:
          • No

          Share this review

           
          5.0

          more than I could expect

          By marshlander

          from French Guiana

          About Me Photo Enthusiast

          Verified Buyer

          Pros

          • Compact
          • Durable
          • Easy to Use
          • Great Picture Quality
          • Lightweight

          Cons

            Best Uses

            • Wildlife Photos

            Comments about 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses:

            I bought the converter to gain some reach with my DFA 100mm macro WR and DA* 300 mm.
            The result is more than good : almost no lost in image quality.
            Whith K3, using the converter gives me clearly better images than cropping whithout converter.

            • Was this a gift?:
            • No

            Share this review

             
            5.0

            Amazing Teleconverter

            By RGV Birder

            from Rio Grande Valley, Texas

            About Me Photo Enthusiast

            Verified Reviewer

            Pros

            • Compact
            • Durable
            • Easy to Use
            • Great Picture Quality
            • Lightweight

            Cons

              Best Uses

              • Landscape/Scenery
              • Sports/Action
              • Travel
              • Wildlife Photos

              Comments about 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses:

              This tc is an amazing lens. I have matched it with the Pentax 300 f4 DA and have been testing it for the last couple of weeks with the K-3. In my informal tests, I cannot see any loss of resolution compared to the the 300 without the tc. I get the same results with my 50-135 and my 200mm DA. The SDM autofocus is fully functional and works fast with the tc attached. The cost in all cases is the losss of one f-stop. Further, I have tested this tc with two Tamron lenses and it functions perfectly (including auto focus) with these lenses, except the SDM reverts to the older screw-drive system. With the 300mm, the focal length becomes 420 which fills a big hole in the Pentax lens lineup. Worth the price!

              • Was this a gift?:
              • No

              Share this review

              (1 of 1 customers found this review helpful)

               
              5.0

              Great addition to your lens inventory!

              By Rolland S

              from Loveland, CO

              About Me Semi-pro Photographer

              Verified Buyer

              Pros

              • Easy to Use
              • Great Picture Quality
              • Lightweight

              Cons

                Best Uses

                  Comments about 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses:

                  As advertised: no difference in image quality with or without the converter. It gives each of your compatible lenses the extra "reach" you often wish you had at half the cost of the next-longer lens. I gave a lot of thought to the $ price, but one day of use cancels out any doubts. It was money well-spent.

                  • Was this a gift?:
                  • No

                  Share this review

                   
                  5.0

                  Makes your lens inventory complete

                  By Rolland S

                  from Loveland, CO

                  About Me Semi-pro Photographer

                  Verified Buyer

                  Pros

                  • Compact
                  • Easy to Use
                  • Great Picture Quality
                  • Lightweight

                  Cons

                    Best Uses

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

                    Comments about 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses:

                    Gives that extra reach to the lenses you already own. I have the DA* 200, the DA* 50/135 zoom and a Sigma 17/70 zoom. It works magic with each of them and provides the additional "reach" without the cost of a 300 mm. I've found the converter to be just as sharp as the lens without the converter. Only under certain lighting conditions have I noticed any aberration, which is easily corrected in LightRoom. You have to be "pixel-hunting" to notice it. Great product!

                    • Was this a gift?:
                    • No

                    Share this review

                    (3 of 3 customers found this review helpful)

                     
                    5.0

                    Works great

                    By Toad

                    from Grand Junction, CO

                    About Me Photo Enthusiast

                    Verified Buyer

                    Pros

                    • Compact
                    • Easy to Use
                    • Great Picture Quality
                    • Lightweight

                    Cons

                      Best Uses

                      • Family Photos
                      • Sports/Action
                      • Wildlife Photos

                      Comments about 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses:

                      Works well and maintains all lens functions and focus, including fine focus adjustment. Have used with DA*300mm, DA 35mm F2.8 Limited Macro, D FA 100mm F2.8 Macro WR, and DA 18-250mm F3.5-6.3 (even though supposed to be used with lenses max aperture at least F4). Very sturdy but small and light weight. K-5 camera recognizes the adjusted F stops and focal lengths. Image quality appears to maintained as with the lens without the converter.

                      • Was this a gift?:
                      • No

                      Share this review

                       
                      5.0

                      works great

                      By patricklgv

                      from Bloomfield, CA

                      About Me Photo Enthusiast

                      Verified Reviewer

                      Pros

                      • Compact
                      • Durable
                      • Easy to Use
                      • Great Picture Quality
                      • Lightweight

                      Cons

                        Best Uses

                        • Travel
                        • Wildlife Photos

                        Comments about 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses:

                        I took this converter to extend the range of my 60 - 250mm lens on an African safari. It performed flawlessly. Just as sharp as the lens itself. Highly recommended.

                        • Was this a gift?:
                        • No

                        Share this review

                        (3 of 3 customers found this review helpful)

                         
                        5.0

                        Worth Every Penny

                        By Colorado Bear

                        from Colorado Springs, CO

                        About Me Photo Enthusiast

                        Verified Buyer

                        Pros

                        • Compact
                        • Easy to Use
                        • Great Picture Quality
                        • Lightweight

                        Cons

                          Best Uses

                          • Landscape/Scenery
                          • Sports/Action
                          • Travel
                          • Wildlife Photos

                          Comments about 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses:

                          We most certainly could not afford the $[$]for the 560mm f5.6, and we already have the 300mm f4 (a sweet lens). So, what could we do to extend our reach? Pentax just released the answer, the 1.4x rear converter.We tested the 1.4x at the annual Sandhill Crane migration in Kearney, Nebraska, using a K-3. It made a huge difference in our ability to capture "the shot." Yes, we could have zoomed and cropped using shorter lenses. But my wife and I are firm believers that the best shots are always composed in the camera first. The less digital manipulation, the better. The results with this 1.4x rear converter have absolutely been worth the price. And the loss of one f-stop is highly acceptable, given the ASA capabilities of the Pentax cameras.Be sure you have one of the recommended Pentax cameras before you buy this, as the firmware for older cameras (e.g., K10D, K20D) cannot compensate for this lens.

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                          • No

                          Share this review

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