Quick Exakta lens to Nikon F adapter

sajualex1 · Joined: 11 Sep 2011 Posts: 40

At last i mount the mayer trioplan on a Nikon D40, not yet tested. Will post the snaps later. Thanks for the M39 adapter idea. Smile

mmmio · Joined: 04 Apr 2010 Posts: 4

it is good too for Canon EOS 5D mark I Mount or only for nikon?

Lena · Joined: 24 Apr 2012 Posts: 495 Location: Pl

Which would be easier to mount on Nikon: Exakta or Praktina? I don't necessarily have to get infinity, but the working distance I get with M42 lenses would be nice.

Lena · Joined: 24 Apr 2012 Posts: 495 Location: Pl

Eventually I got the Exakta version. I replaced the bayonett with the thinnest macro tube + Nikon mount from the tube set and somehow I have infinity focus Shocked

The problem is I can't stop the lens down, but I will play wide open for a while and see what to do next.

It worked with the black Trioplan N.

Attila · Expire: 2025-11-18

This is a good news!

johjeff · Joined: 14 Aug 2013 Posts: 20

Lena,

Do you have links to the products you used to mount the Exakta lens on your Nikon? I just won a Carl Zeiss Jena Nr.3379720 Tessar 1:2.8 f = 50 mm Photo Lense on ebay, which has this mount:

Which I have been told is the Exakta 35mm mount. I have a Nikon F-Mount camera and would like to use this lens.

Thanks for your help.

johjeff · Joined: 14 Aug 2013 Posts: 20

I am a little confused by where exactly the front element of the lens should be in relation to the opening of the Nikon body. Should the lens be more inside, or more outside the camera body to achieve the full focal range?

Also, is infinity focus really that important for most landscape or people shots?

Does anyone have some examples of using the m39/0-ring mod using a CJZ tessar 50 2.8?

Thank you.

mcwc · Joined: 14 Feb 2014 Posts: 1 Location: Vancouver, BC

Has anybody else tried to mount an Exakta lens to a Nikon F-mount body? I have a Flektogon 35mm f2.8 that I would like to use on my Nikon D600 and hopefully with infinity focus.

I was thinking of using a variation of the method used by OP and what the Pentax K-mount guys have tried.

This is what I'm thinking:
- Thread on a M39 to M42 adapter ring & lock into place with an o-ring. I would prefer not to use glue if I don't have to.
- Screw on a M42 to F-mount adapter. Test for infinity focus.
- If it doesn't focus to infinity, grind the M42 adapter to make it thinner. Test for infinity focus. Repeat grinding if necessary.
- Test for interference with the reflex mirror on a camera with a mechanical mirror lock-up such as a Nikon F4.
- If everything works out, then I'll use blue thread locker between the M42 to F-mount adapter and the M39 to M42 adapter ring.

luisalegria · Expire: 2018-01-18

On its own, unless you are lucky in that the lens already focuses way past infinity, you will not get infinity that way.
Even a zero-depth adapter will still be more than 2mm over minimum back focus.

Speaking from the PK side, which is 1mm closer to the magic number than the Nikon world, I have found NO Exakta lenses that can be mounted on a similar adapter that give me infinity (and I have had several dozen Exakta lenses), unless adjustments are made to the lens itself - i.e., setting back the position of the lens block, adjusting the helical travel and limits, etc.