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.

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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!

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I am a self taught professional photographer who specializes in street, landscape, lifestyle, and marketing photography. I'm the creator of PhotolisticLife.com and DecisiveShot.com, two websites dedicated to sharing the passion of photography and educating others. When I'm not working on the sites I'm traveling and teaching workshops.

31 Comments

    • 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!

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    • 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.

  • 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

    • 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.

    • Yes, you missed the Nikon FM eyepiece FM2 that screws the other two pieces together… There is a link to it in the post above. Good luck!

      • Thanks John, I got the FM2 in the mail and the key to getting it all together, is he metal grooved band that came with the DK19. Turn it the right way and it clamps onto the DK19 and the FM2 screws into it and the DK22.

      • Miguel, like you I have a DK22, FM2 and DK19. I do not have a DK3 that John has. I just had DK19 lying around. You appear to have somehow hooked up DK22 with a DK19 using an FM2. I have been staring at these pieces for quite some time and I just don’t see how that is possible. DK19 is just too big for DK22 or FM2. What am I missing? Or did you mean DK3 when you said DK19?

        This is killing me.

  • Thanks John, I got the FM2 in the mail and the key to getting it all together, is he metal grooved band that came with the DK19. Turn it the right way and it clamps onto the DK19 and the FM2 screws into it and the DK22.

  • Sidenote: I was looking at this conversion for a Nikon D750. The DK-22 doesn’t fit over the D750 mount, but it will over a D7100’s. It’s just too snug the 750. Do you know if there is a piece that will fit, which will accommodate a rubber circular eyecup?
    -Cheers,
    Greg

  • Did this. I like. I’m keeping the original mount just in case as the eyecup seems to easily turn and also turns the circular part, but it’s a noticeable improvement over the “stock” offering.

  • Great idea. Would you show a photo of the backside of the body from a lower angle? I want to see how much the round cup will overlap the live view screen. I can’t tell by your photos. I want to be able to use live view for video when i switch back and forth from stills shooting. But I don’t want the round cup to feel like a nuisance when shooting video. Thank you!

    • Would love to but I don’t use the D600 anymore. I did use live view quite often and never had an issue but don’t know for sure if there was any overlap. Sorry.

  • I did something very similar, only with a diopter eyepiece for an FM2. very nice for shooting when wearing eyeglasses, as you can ‘scoop’ the edge of the rubber under your glasses, so they move up but are still securely on your face, take a shot, and no hunting for where I put my glasses afterwards.
    Also, I had a square ‘nikon diopter’ eyepiece that I had modified so the stock rubber piece would fit on top of it (filed the grooves a bit wider with a nail file). I popped the lens out (came out in pieces) and used it to ‘stack’ the eyecup out a bit from the camera. Now the cup folds back perfectly, and I have a tad more room for BBF.

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