Convert the Nikon D600 Viewfinder into a Round Viewfinder (Works with D5100, D7000, and Others)

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If there is one thing that has been a continual pain in my butt with the D600 it would be the viewfinder.  The D600 viewfinder is the same as the one on the D7000 and D5100 (albeit the viewfinder on the D600 covers 100% of the field of view while the others are around 90%), they are rectangle and let all the light in the world in, it’s hard to get a good view of the light meter on the inside of the viewfinder without pressing your poor little peepers straight up against the glass.  If you like to take photographs with the sun in the sky the D600 eyepiece will blind you (not literally).  There had to be a fix, and there is.  Let’s cut the fluff and jump right in, here is what you’ll need:

Nikon FM Eyepiece FM2,FE2,FA Standard (stock) replacement Finder Eyepiece (threaded) ($21.95)

Nikon DK-3 Rubber Eyecup for FM/FM-2, FM-3, FA, FE/FE-2 ($9.95)

Nikon DK-22 Eyepiece Adapter for Nikon SLR Cameras ($12.17)

Total $44.07

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Putting the eyepiece together is not brain surgery, all you need to do is pancake the rubber eye cup between the eyepiece and the eyepiece adapter, then screw the eyepiece and adapter together with the rubber cup between.  Now just slide your rectangle viewfinder up and off the camera and slide the new one on.  You’re welcome!

The new eyepiece is great, it totally immerses you in the scene your photographing and cuts all the sunlight out from the sides.  Your able to clearly see the light meter and the other settings inside your viewfinder.  If you have glasses then this is definitely the viewfinder for you, the rubber is nice and soft so it wont scratch the heck out of your spectacles.

This adapter should fit most other eyepieces like the D5100, D3100, D7000, etc..

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Check out More D600 Resources

Nikon D600 Review
Sample Photos
Nikkor 24-85mm Review

The $125 Nikkor 50mm f1.8D You Need to Own

I have worked in the financial industry for 7 years and really enjoy it. Photography is my passion and outlet. I started PhotolisticLife to share what I've learned with others and create something positive and encouraging.


  • [...] How to Convert your D600 and Other Nikon Viewfinders to a Circular Viewfinder Like the D800 [...]

  • Reply November 15, 2012


    Is it possible to convert it into the same viewfinder as the d800 or d700? thanks

    • Reply November 15, 2012


      I was not able to find the parts needed to do so but you may wan to check out the DK-19 rubber eye cup, it looks to be a little smaller than the DK-22 if thats what your looking for. I don’t know if it will work but from what I read it should (keep your receipt, it’s only $10). Find it on Amazon, it’s cheaper. Good luck!

  • [...] How to Convert Your D600 Viewfinder into a Round Viewfinder [...]

  • Reply December 16, 2012

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  • [...] IT WHILE LOOKING AT A D600 POST IN FLICKR. CHANGE OUT THE RECTANGULAR EYE PIECE FOR A ROUND ONE. Convert the Nikon D600 Viewfinder into a Round Viewfinder (Works with D5100, D7000, and Others) RON OVER THE HILL AND ENJOYING THE RIDE Reply   Reply With [...]

  • [...] ON D600. I WAS HAVING A PROBLEM SEEING THE NUMBERS IN MY D5100 VIEWFINDER THIS CONVERSION MY HELP. Convert the Nikon D600 Viewfinder into a Round Viewfinder (Works with D5100, D7000, and Others) RON OVER THE HILL AND ENJOYING THE RIDE Reply   Reply With [...]

  • Reply December 30, 2012

    Didier AYMARD

    Thank you

    • Reply December 30, 2012

      John Barbiaux

      You are welcome. Enjoy!

  • Reply June 14, 2013


    Why you don’t use the dk-22 and dk-19? What is the difference between dk-19 and dk-3?
    Thank you

    • Reply August 16, 2013

      John Barbiaux

      Sorry for the delay, as far as I know this is the only setup that connects together well. I had to use all three pieces because they create a sandwich and the only way to keep them together is using the FM piece. The DK 19 may be able to be used but you’d still need the fm piece to clamp it to the other piece that doing the actual square to circle conversion. Hopefully that helps, let me know if you got another combination to work and I’ll update the page. Thanks.

  • Reply June 27, 2014

    Aqeel Darwish

    i have all of three of them …
    the dk22 + dk19 and the fm piece
    i screwed in the fm piece to the dk22
    but i can’t figure out to fit the dk 19 in the dk22 :(

    do i need a super glue or something

    • Reply June 27, 2014

      John Barbiaux

      No super glue needed… You need to sandwich the pieces and when you screw in down they will be held in place. I think you may just have them in the wrong order.

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