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Nikon DK-20C -4 Diopter for Rectangular-Style Viewfinder

You Pay: $9.95
Product Highlights
  • For D300, D200, D100, D90, D80, D70, D60, D50, D40, N80, N75, N70, N65, N60, N55, N50, Pronea, N2-4-5-6000 Series & FM/FE10 Cameras

Optional Nikon eyepiece diopters allow you to optimize your SLR viewfinder's sharpness in conjunction with your individual eyesight. Nikon SLR 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 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.

Please click here for a Compatibility Chart .

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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