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Nikon DK-20C -3 Diopter for Rectangular-Style Viewfinder

You Pay: $9.95
Product Highlights
  • -3.0 Correction Eyepiece
  • For Nearsighted Users
  • Fits Select Nikon SLR Cameras

The DK-20C -3 Diopter for Rectangular-Style Viewfinder from Nikon allows 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.

Compatibility
Nikon D3000, D3100, D3200, D5000, D5100, D5200, D600, D7000, 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

REVIEW SNAPSHOT®

by PowerReviews
NikonDK-20C -3 Diopter for Rectangular-Style Viewfinder
 
4.3

(based on 9 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (8)
  • Improves function (7)
  • Lightweight (4)

Cons

    Best Uses

    • Everyday use (7)
    • Action shots (4)
    • Travel (3)
      • Was this a gift?:
      • No (5)

    Reviewed by 9 customers

    Sort by

    Displaying reviews 1-9

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    4.0

    Eye Saver

    By sportsman

    from Boston

    About Me Pro Photographer

    Verified Buyer

    Pros

    • Easy to Use
    • Improves Function

    Cons

      Best Uses

      • Action Shots
      • Everyday Use
      • Macro Photography
      • Wildlife

      Comments about Nikon DK-20C -3 Diopter for Rectangular-Style Viewfinder:

      Nikon's D5100 eyepiece comes with a diopter, but it isn't strong enough for me to focus without glasses, so I decided to buy this extra diopter to add on.
      Pressing glasses up against even a rubber eye piece can be annoying so that's what motivated me to get additional diopter strength. Critical focus is important and I want every means to do it right.
      I wish the large LCD screen could be used for photography, but it only works during live view mode and that is really useful for video, not stills.

      • Was this a gift?:
      • No

      Share this review

       
      5.0

      Great for Myopics !!

      By Donald 33

      from Singapore

      About Me Photography Student

      Verified Buyer

      Pros

      • Easy to Use
      • Improves Function

      Cons

        Best Uses

        • Action Shots
        • Everyday Use
        • Traveling
        • Wildlife

        Comments about Nikon DK-20C -3 Diopter for Rectangular-Style Viewfinder:

        Just attached and adjust. That simple and you can see and focus clearly.

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        Perfect solution

        By Bugeater

        from Gainesville, FL

        About Me Semi-pro Photographer

        Verified Buyer

        Pros

        • Easy to Use
        • Improves Function
        • Lightweight

        Cons

          Best Uses

          • Action Shots
          • Everyday Use
          • Macro Photography
          • Traveling

          Comments about Nikon DK-20C -3 Diopter for Rectangular-Style Viewfinder:

          Was exacatly what I was looking for. I can now see what I'm taking pictures of.

          • Was this a gift?:
          • No

          Share this review

           
          4.0

          Does what it should

          By Mike

          from Houston, TX

          About Me Pro Photographer

          Verified Buyer

          Pros

          • Durable
          • Easy to Use
          • Improves Function
          • Lightweight

          Cons

            Best Uses

            • Action Shots
            • Everyday Use
            • Traveling

            Comments about Nikon DK-20C -3 Diopter for Rectangular-Style Viewfinder:

            There isn't much to say about this item. It is exactly as it says it is. I have owned several of these in the past and will continue to purchase them for future cameras. This one went on a D40 that I keep in the car.

            Other reviewers have lamented that there is no rubber eye cup, but the diopter can easily be fitted with the one you remove from your camera in order to attach this piece of equipment.

            If you wear glasses, I cannot recommend this enough. Especially if you ever find yourself at an awkward angle trying to move your glasses so you are not looking over them.

            • Was this a gift?:
            • No

            Share this review

             
            5.0

            New Eyes

            By JT

            from Sacramento, CA

            About Me Casual Photographer

            Verified Buyer

            Pros

            • Easy to Use
            • Improves Function

            Cons

              Best Uses

              • Everyday Use

              Comments about Nikon DK-20C -3 Diopter for Rectangular-Style Viewfinder:

              Replaced stock diopter on my D300. I have astigmatism and with this diopter, I am now able to see more clearly through the viewfinder. Especially helpful when focusing manually.

              • Was this a gift?:
              • No

              Share this review

              (1 of 1 customers found this review helpful)

               
              3.0

              Would be better with a rubber cup!

              By kp2000

              from Castle Rock, CO

              About Me Semi-pro Photographer

              Verified Buyer

              Pros

              • Easy to Use
              • Improves Function
              • Lightweight

              Cons

                Best Uses

                • Everyday Use

                Comments about Nikon DK-20C -3 Diopter for Rectangular-Style Viewfinder:

                Standard item, but would be much better with a rubber cup around the diopter.

                Share this review

                (1 of 1 customers found this review helpful)

                 
                4.0

                finally, no glasses necessary

                By Colorado Dave

                from Denver, CO

                About Me Photo Enthusiast

                Verified Buyer

                Pros

                • Durable
                • Easy to Use
                • Improves Function
                • Lightweight

                Cons

                  Best Uses

                  • Everyday Use

                  Comments about Nikon DK-20C -3 Diopter for Rectangular-Style Viewfinder:

                  I am nearsighted by -3.5 diopters. With the application of this diopter and full adjustement on the internal diopter control I get sharp focus through the view finder without having to use my glasses.

                  Share this review

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Such a pleasure without the eyeglasses.

                  By Ted

                  from Boca Raton, FL

                  Verified Buyer

                  Pros

                  • Convenient
                  • Extremely sharp

                  Cons

                  • none

                  Best Uses

                    Comments about Nikon DK-20C -3 Diopter for Rectangular-Style Viewfinder:

                    Wearing bifocals and taking photos sometimes is very annoying. Adding the eyepiece diopter to my Nikon D300 has provided me with a renewed enjoyment of photography. My prescription is -3.5 diopters, but adding the -3.0 diopter (no half size increments) works just fine with the fine adjustment lever. Highly recommended for those eyeglass wearers wishing to get closer to the viewfinder

                    Share this review

                    (1 of 1 customers found this review helpful)

                     
                    4.0

                    Glassess not required

                    By Tebby

                    from Sacramento, CA

                    Verified Buyer

                    Pros

                    • Easy to use

                    Cons

                    • Rubber eyecup doesnt fit

                    Best Uses

                      Comments about Nikon DK-20C -3 Diopter for Rectangular-Style Viewfinder:

                      For those of us that don't have 20/200 vision or even 20/20 vision This item allows the eyepeice to be viewed crystal clear without the need of glasses which are hard to work with against the back of a camera. The only issue it has is the regular eye peice rubber stopper does not slide over the diopter hence 4 stars out of 5.

                      Share this review

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