Nikon DK-3 Rubber Eyecup for FM3a, FM2, FE2 & FA Cameras

BH #NIDK3 • MFR #2362
Nikon DK-3 Rubber Eyecup for FM3a, FM2, FE2 & FA Cameras
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Vilson L., B&H Photo Expert

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Nikon DK-3 Overview

For use with the Nikon FM3a, FM2, FE2 & FA cameras, the DK-3 eyecup enhances your viewing by minimizing the stray light that could enter the viewfinder.

UPC: 018208023622

Nikon DK-3 Specs

Packaging Info
Package Weight0.015 lb
Box Dimensions (LxWxH)2.95 x 2.6 x 0.55"
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Browsing History

will this fit onto a nikon f3?

will this fit onto a nikon f3?
Asked by: William
Yes. It is held in place with the eyepiece that came with the camera.
Answered by: David
Date published: 2020-11-07

Do you know if this would fit a Fuji GSW690II?

Do you know if this would fit a Fuji GSW690II?
Asked by: Stephen
I can report this does not fit on a GW690III- the opening of the eye up fits the Fuji viewfinder perfectly, however the eyepiece that should sandwich this to the body is too wide and the threads to shallow to actually mount it. I assume there is a nikon eyepiece that would make this work.
Answered by: Chris
Date published: 2020-09-22

Is it compatible with a metallic -2 diopter? WIll ...

Is it compatible with a metallic -2 diopter? WIll it be caught between the camera and the diopter screw or what? Any ideas?
Asked by: laurentiu
The diopter screws in to hold the eyecup to the camera (or to the adapter if the camera has a rectangular eyepiece). So basically it works with cameras other than those listed if you have the adapter for Nikons with a rectangular eyepiece or directly for Nikons with circular eyepieces (where the diopter takes the place of the “blank” eyepiece that came with the camera.)
Answered by: Anonymous
Date published: 2019-10-10


What is the diameter of the opening?
Asked by: Jay L.
Unfortunately, we are not able to measure the eyecup and Nikon does not publish the diameter.
Answered by: Dennis A L.
Date published: 2018-08-27


How does this attach to the FM3a? The cup seems to be designed to slide onto something, but the eyepiece is a solid cylinder, with no slots.
Asked by: John
I mated this with the DK22 adapter. I had a round rubber eye piece which screwed out. I placed the dk3 on the eyepiece, then screwed the rubber eyepiece into the dk22 through the dk3 thus securing it
Answered by: John Gregory N.
Date published: 2018-08-27


hi, can this be directly screwed on to the Nikon FE?
Asked by: Rubin S.
Yes, this will also be compatible with the FE.
Answered by: Andrea O.
Date published: 2019-06-17


do I need an adapter or a ring to fit this on my Nikon FE? Or does this go directly on my viewfinder?
Asked by: Rubin S.
I put it on the Nikon D750. It has a square viewfinder. So I had to buy 3 pieces. I bought the DK-22, DK 3, and the Nikon 0 Diopter for FM3A, FM2,FE, and FA. So yes, you need all the pieces too. I also love this setup. Works really well. My old viewfinder on my D7100 and D750 kept falling off.
Answered by: Mona H.
Date published: 2019-06-18


Will this fit my D7100?
Asked by: Anonymous
Yes, with a DK-22 and FM2 eyepiece.
Answered by: bobkoure
Date published: 2018-08-27
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