Nikon FM eyepiece

[ericB&W]

What damned eyepiece fits on a Nikon FM?
Last week bought on Ebay a beautiful black Nikon Fm first series in perfect shape , that one with knurled shutter selector.
I knew that ocular attachement was not the same as F and F2 and , in fact , the eyepiece and the eyepiece magnifier of my nikon F/F2
doesn't fit , so i looked at nikon system map that i still conserve since when i purchased my first Nikon Fg and there is indicated
the DG-2 as eyepiece magnifier for Nikon FA , FE2 and FM2 , so should fit also on my FM.
I Bought the DG-2 but doesn'fit on FM but has the same attachement for Nikon F2.
I look at Amazon and bought yesterday the eyepiece for Fm3/FM2/FA/ FE2 , and is not the right one, is too small and, the fact is that
my nikon FM has the screw thread externally ,while the internal part of the ocular is flat so is no way to screw something in it .
I was asking if my camera lacks some circular fitting ring , i don't know where to look at, i looked for something on
http://www.mir.com.my/rb/photography/hardwares/classics/nikonfmseries/fm/index.htm or buktus.org manuals but
without finding anything , if someone has the solution i'll be grant.

 

[Ian C]

The thread is 19 mm diameter. The F, F2, F3, and other “professional level” Nikons use 22 mm diameter thread eyepieces.

https://www.bhphotovideo.com/c/product/37450-REG/Nikon_2925_Finder_Eyepiece_for_FM.html

 

[skylight1b]

I can confirm that the one Ian C linked is correct. I just bought this for the FM I recently picked up.

 

[Nitroplait]

The thread is 19 mm diameter. The F, F2, F3, and other “professional level” Nikons use 22 mm diameter thread eyepieces.

https://www.bhphotovideo.com/c/product/37450-REG/Nikon_2925_Finder_Eyepiece_for_FM.html

The FM/FA/FE eyepiece also fits on Nikon F/F2 finders, as well as old Nikkormat cameras.

 

[ericB&W]

The thread is 19 mm diameter. The F, F2, F3, and other “professional level” Nikons use 22 mm diameter thread eyepieces.

https://www.bhphotovideo.com/c/product/37450-REG/Nikon_2925_Finder_Eyepiece_for_FM.html

I bought this one,
,
original Nikon, should be the same but there is no way to screw in the camera ,so i was asking to some Nikon FM owner if there is a removable ring adapter between the camera and the eventual accesories that lacks in my camera .

 

[ericB&W]

the link doesn't work

 

[ericB&W]

Amazon.it : nikon fm2 eyepiece

 

[ericB&W]

Now The link over works, i bought the first one from top left

 

[skylight1b]

Amazon.it : nikon fm2 eyepiece

The top left option has changed since I first clicked on the link, but the FM2 eyepiece should be the same. It sounds like you were sent the wrong one. You are right in that the threads on the camera are on the outside. It doesn't seem like your camera is missing anything, but if you take a picture of it, we could tell you for sure.

 

[ericB&W]

Hope the image works

 

[ericB&W]

As you can see the inner part of the ocular is flat so is impossible to screw the eyepiece,
while the external part has the screw thread .

 

[skylight1b]

Hope the image works
View attachment 334932

The camera looks fine, so I think you're just having back luck with the eyepieces you are receiving. "Nikon 2925" is the proper part number.

 

[ericB&W]

The camera looks fine, so I think you're just having back luck with the eyepieces you are receiving. "Nikon 2925" is the proper part number.

Is what is written on the small box i bought , "2925" item number , so the ocular is the right one but can't be screwed,
i'm getting crazy .

 

[Ian C]

In the photo shown in post #10, it appears that the eyepiece is present but the rubber outer part (to prevent scratching eyeglass lenses), is absent. You need to unscrew the damaged eyepiece so that you can screw in a new one, if it is your intention to replace it.

Without the rubber outer ring, there isn't much to grasp with your fingers. You might want to wear a pair of reasonably thick rubber gloves to increase the friction so that you can unscrew the original eyepiece.

With the eyepiece removed, you’ll see the rear surface of the built-in loupe, which is several millimeters deeper into the camera body than the eyepiece.

 

[skylight1b]

In the photo shown in post #10, it appears that the eyepiece is present but the rubber outer part (to prevent scratching eyeglass lenses), is absent. You need to unscrew the damaged eyepiece so that you can screw in a new one, if it is your intention to replace it.

Without the rubber outer ring, there isn't much to grasp with your fingers. You might want to wear a pair of reasonably thick rubber gloves to increase the friction so that you can unscrew the original eyepiece.

With the eyepiece removed, you’ll see the rear surface of the built-in loupe, which is several millimeters deeper into the camera body than the eyepiece.

Good eye!

 

[ericB&W]

In the photo shown in post #10, it appears that the eyepiece is present but the rubber outer part (to prevent scratching eyeglass lenses), is absent. You need to unscrew the damaged eyepiece so that you can screw in a new one, if it is your intention to replace it.

Without the rubber outer ring, there isn't much to grasp with your fingers. You might want to wear a pair of reasonably thick rubber gloves to increase the friction so that you can unscrew the original eyepiece.

With the eyepiece removed, you’ll see the rear surface of the built-in loupe, which is several millimeters deeper into the camera body than the eyepiece.

You're right, there was the ocular , damnation... i was getting crazy to find a solution,
i've screwed it out , now put the new one .
Thanks Ian, great observer .

 

[CMoore]

The thread is 19 mm diameter. The F, F2, F3, and other “professional level” Nikons use 22 mm diameter thread eyepieces.

https://www.bhphotovideo.com/c/product/37450-REG/Nikon_2925_Finder_Eyepiece_for_FM.html

The FM/FA/FE eyepiece also fits on Nikon F/F2 finders, as well as old Nikkormat cameras.

We seem to have a contradiction here.
Anybody care to clear this up.?

 

[BrianShaw]

Eyepiece accessories thread sizes

What are their dimensions with various cameras? -) diameter -) pitch -) gender (on the body side)

www.photrio.com

 

[Nitroplait]

We seem to have a contradiction here.
Anybody care to clear this up.?

I have mounted the said eye piece in all the mentioned cameras. If you don’t trust my word, I can take a photo when time permits.

 

[250swb]

I have mounted the said eye piece in all the mentioned cameras. If you don’t trust my word, I can take a photo when time permits.

I believe you, the eyepiece on my Nikon FM2 also fits my F, F2, and Nikkormat FT.

 

[BrianShaw]

https://www.nikonusa.com/fileuploads/pdfs/EP_CompChart.pdf

Matthew Currie on Photo.com:
Posted September 9, 2016
<p>Yes, I have that chart too, and it's useful, but for those seeking odd bits or unavailable powers for obsolete cameras it's important to know that columns 1,2,3 and 6 are all 22 mm. threaded. The differences are in surrounds and locks, not in thread size. Columns 4 and 5 are both 19 mm. The last column is the square finder with slip-over accessories, which have remained the same, but not shared with the earliest F and Photomic finders.</p>

<p>If you use the wrong eyepieces you may find they interfere with back opening or don't lock right, or the like, but the threads do not vary. </p>

 

[-chrille-]

This is the eyepiece I use on my FM. It also fits my FE and F2 with Nikon DP-1.

 

[Ian C]

The Nikon Eyepiece Chart linked in post #21 is useful. Not all Nikon models that accept user-replaceable eyepieces are listed. For example, it doesn’t show my EL2 (1977-1978).

Even though it isn’t listed, the EL2 accepts the 19 mm diameter #2925 eyepiece (Nikon product package shown in post #22). The original EL2 eyepiece has a metal body with gripping serrations about the outside diameter—not kind to eyeglass lenses.

 

[Nitroplait]

The Nikon Eyepiece Chart linked in post #21 is useful. Not all Nikon models that accept user-replaceable eyepieces are listed. For example, it doesn’t show my EL2 (1977-1978).

Even though it isn’t listed, the EL2 accepts the 19 mm diameter #2925 eyepiece (Nikon product package shown in post #22). The original EL2 eyepiece has a metal body with gripping serrations about the outside diameter—not kind to eyeglass lenses.

I have put it Nikkormat FTn, FT2 and 3 as well as EL and ELW.
I have two 70's era Nikon F's; one with the FTn Photomic and one with the plain prism. Works on both.
My F2, all with DP-1 prisms are also compatible.
When in Japan I usually buy a handful as it also fits other cameras; my Fujica GL690 comes to mind.