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Nikon DK-20C Correction Eyepiece for Rectangular-Style Viewfinder (-4.0)

You Pay: $9.50
Product Highlights
  • Fits Select Nikon SLR and DSLR Cameras

The DK-20C -4.0 Correction Eyepiece for Rectangular-Style Viewfinder from Nikon allows you to optimize your SLR/DSLR viewfinder's sharpness in conjunction with your individual eyesight. Nikon SLR/DSLR cameras (without built-in adjustable eyepiece correction) have a base diopter value of minus one. Minus one is considered the optimum starting point for the majority of SLR/DSLR users with normal vision. The combination of the camera's viewfinder components and a clear (standard) eyepiece form a virtual image of a subject on the camera's focusing screen that is the approximate equivalent of a viewing distance of one meter.

Each Nikon eyepiece diopter incorporates a numerical value, represented by a minus value (nearsighted) or a plus value (farsighted) number, enabling you to select the appropriate diopter for your vision and your camera model.

The eyepiece's diopter value is, when combined with the viewfinders minus one value, the end-result value. No combination of the camera's base value of minus one and a given accessory diopter's value is required to arrive at the final desired value. In other words, if you require a diopter of plus 3, simply add a plus 3 diopter to your camera.

Compatibility
D750, D610, D600, D5300, D5200, D5100, D5000, D7100, D7000, D3300, D3200, D3100, D3000, D300, D300S, D200, D100, D90, D80, D70, D60, D50, D40, N80, N75, N70, N65, N60, N55, N50, Pronea, N2-4-5-6000 Series & FM/FE10 Cameras
Nikon DK-20C Correction Eyepiece for Rectangular-Style Viewfinder (-4.0)
  • Limited 1-Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    NikonDK-20C -4 Diopter for Rectangular-Style Viewfinder
     
    4.2

    (based on 5 reviews)

    Ratings Distribution

    • 5 Stars

       

      (3)

    • 4 Stars

       

      (1)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (1)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

    • Improves function (3)
    • Lightweight (3)

    Cons

      Best Uses

          • Was this a gift?:
          • No (3)

        Reviewed by 5 customers

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        Displaying reviews 1-5

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        2.0

        Works

        By TURI

        from Shkoder

        Verified Buyer

        Pros

        • Lightweight

        Cons

          Best Uses

            Comments about Nikon DK-20C -4 Diopter for Rectangular-Style Viewfinder:

            for a piece of plastic, too pricey,
            for the price, worth having it

            • Was this a gift?:
            • No

            Share this review

             
            5.0

            -4 Diopter for Rectangular

            By maspiazu

            from charlotte, nc

            About Me Pro Photographer

            Verified Buyer

            Pros

            • Durable

            Cons

            • Bulky

            Best Uses

            • Everyday Use

            Comments about Nikon DK-20C -4 Diopter for Rectangular-Style Viewfinder:

            I really like this one to see clear through the viewfinder.

            • Was this a gift?:
            • No

            Share this review

             
            5.0

            Gives me a clearer view of the world!

            By Eye doctor camera nut

            from Rhode Island

            About Me Photo Enthusiast

            Verified Buyer

            Pros

            • Easy to Use
            • Improves Function
            • Lightweight

            Cons

              Best Uses

              • Everyday Use

              Comments about Nikon DK-20C -4 Diopter for Rectangular-Style Viewfinder:

              If you need glasses to see far away, this is a great way to get your eye closer to the viewfinder. Field of view doesn't seem to be limited by the lens frame, and it's easy to install and remove. I'd suggest asking your eye doctor (yes, I am one) if these diopter lenses will work for you--if you have too much astigmatism, or your near-sightedness or far-sightedness is beyond the range of these lenses, your image might not be sharp enough for what you need.

              • Was this a gift?:
              • No

              Share this review

               
              5.0

              Works as promised

              By Tim

              from Austin

              About Me Semi-pro Photographer

              Verified Buyer

              Pros

              • Durable
              • Easy to Use
              • Improves Function
              • Lightweight

              Cons

                Best Uses

                • Traveling
                • Without eyeglasses

                Comments about Nikon DK-20C -4 Diopter for Rectangular-Style Viewfinder:

                Works as promised. A touch difficult to take off, but then again, this keeps it from coming off inadventantly!

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                (1 of 1 customers found this review helpful)

                 
                4.0

                Does it's job

                By Willie

                from Colorado

                About Me Professional

                Verified Buyer

                Pros

                • Improves Function

                Cons

                  Best Uses

                    Comments about Nikon DK-20C -4 Diopter for Rectangular-Style Viewfinder:

                    Allows me to work w/o eyeglasses. The built-in diopter adjustment doesn't provide enough range for my eyes. Would like it better if it had the rubber cup that the stock eyepiece has.

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