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ADAPTERS for Nikon Microscope nosepiece
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Smokedaddy



Joined: 07 Oct 2006
Posts: 1131
Location: Phoenix, Arizona

PostPosted: Sun Dec 11, 2016 10:01 am    Post subject: ADAPTERS for Nikon Microscope nosepiece Reply with quote

Looking for some adapters to mount my reversed 28mm Componon on my Nikon MM-11 nosepiece. I have the RafCamera M26x0.7 female to RMS male thread adapter (see attached image) so I don't need that so I am looking for the rest of the adapters. I figured someone here might have these somewhere collecting dust instead of me purchasing them on eBay.

From the microscope nosepiece is goes as follow:

1) (RMS hole in Nikon nosepiece)
2) RMS to Mitutoyo 26mm adapter
3) 26mm-30mm (step up adapter,
4) 30mm-49mm(step up adapter)
5) 49/49 reversing ring, "macro coupling ring" (male 49mm thread both sides)

Thanks,
-JW:



Edit AdminCR - moved from Exchange, and title changed


Last edited by Smokedaddy on Sun Dec 11, 2016 12:19 pm; edited 1 time in total
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ChrisR
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Joined: 14 Mar 2009
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Location: Near London, UK

PostPosted: Sun Dec 11, 2016 12:10 pm    Post subject: Reply with quote

It's not for sale (thought I'd say early)

but I have a dovetail ring, on a fattie 1x objective (which is too big for the turret so has to go "straight in").
I could get an adapter - dovetailed outer disc with an M42 female thread, made. It would be a useful thing for the MM lenses, too.
(I think it's large enough for M42, I'd better measure it!)).
Plain Alumin(i)um shouldn't cost much, especially if a few were made on a run.

It wouldn't be before Christmas!

Anyone interested?
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dolmadis



Joined: 07 Dec 2011
Posts: 477
Location: UK

PostPosted: Sun Dec 11, 2016 12:34 pm    Post subject: Reply with quote

Hi Chris

Yes, I would be interested please.

John
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Smokedaddy



Joined: 07 Oct 2006
Posts: 1131
Location: Phoenix, Arizona

PostPosted: Mon Dec 12, 2016 10:58 am    Post subject: Reply with quote

I"m still not up to snuff on all the terminology here but is this what you're talking about?

http://www.rafcamera.com/en/microscope-dovetail-adapter-49-5mm-to-m42x1

-JW:
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ChrisR
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PostPosted: Mon Dec 12, 2016 2:46 pm    Post subject: Reply with quote

I mentioned the possibility here:
http://www.photomacrography.net/forum/viewtopic.php?p=200242#200242

and I thought someone said they'd tried a Rafcamera adapter and it didn't fit.
I don't know the size and mine's the other side of the room (meaning it would take a week to reach it...)

But if it measured right, I'd ask him - I guess he knows what hs parts fit Smile
A female M42 thread would be more convenient
52mm female (if it would fit inside the arm), would be even better).
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Last edited by ChrisR on Mon Dec 12, 2016 2:56 pm; edited 1 time in total
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dolmadis



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PostPosted: Mon Dec 12, 2016 2:53 pm    Post subject: Reply with quote

The nosepiece dovetail measures 43.7mm. I tried a RAF 43.5 to Zeiss 42mm adapter. Thedovetail had the wrong profile if that is the right technical description.

John
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ChrisR
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PostPosted: Mon Dec 12, 2016 3:18 pm    Post subject: Reply with quote

I found a spare turret I forgot I had. (That's handy, it has 4 Mplans on it).
I saw your post and remeasured, 43.96mm diameter, best I can measure.

The 4mm and 1mm are a bit of an eyeball-estimate holding near the step at the end of a vernier caliper. That would make it 54ยบ. Could be 55 though - only 0.2mm different.


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Last edited by ChrisR on Mon Dec 12, 2016 3:35 pm; edited 3 times in total
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Smokedaddy



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PostPosted: Mon Dec 12, 2016 3:19 pm    Post subject: Reply with quote

I didn't purchase one of those, I was simply asking if that is what you were talking about since I'm struggling with all the nomenclature which is new to me. Suppose I should of been clearer. The 'dovetail' on the 'bottom' of my Nikon MM-11, where the dovetail on my Nikon nosepiece attaches measures 43.96mm, so no that wouldn't fit. The 'top' dovetail where I mounted my 50D measures approximately 48.5mm.
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ChrisR
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PostPosted: Mon Dec 12, 2016 3:42 pm    Post subject: Reply with quote


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Smokedaddy



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PostPosted: Mon Dec 12, 2016 3:44 pm    Post subject: Reply with quote

I agree on those profile measurements. Probably getting OT, dunno, and should move this thread elsewhere.

Would something like this be acceptable (3D printed of course) with a nylon set screw like they use on some telescope accessories and occulars? Don't see why it wouldn't be acceptable.

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Smokedaddy



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PostPosted: Tue Dec 13, 2016 10:00 am    Post subject: Reply with quote

Rafael (RafCamera) contacted me via email about the adapter in question for my Nikon MM-11 and said this;

Quote:
BTW, I remember that I have 44mm dovetail adapters They are made with negative tolerances (actual DT diameter is 43.90-43.95mm)
Should fit you miscroscope, I think.

http://www.rafcamera.com/en/microscope-dovetail-adapter-44mm-to-m42x1
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Pau
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PostPosted: Tue Dec 13, 2016 10:07 am    Post subject: Reply with quote

I don't think it would fit well, despite probably having the same end diameter the Zeiss dovetail is short, ending in a cylinder while the showed Nikon is a cone all the way...
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Smokedaddy



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PostPosted: Tue Dec 13, 2016 10:23 am    Post subject: Reply with quote

I'm still going to give it a shot and print it today if I get time. BTW, the stock Nikon isn't coned or tapered, it's a straight shot through the backside (see picture below). Like I said, I don't see why it wouldn't work unless there's a Z distance length calculation I know nothing about.



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Smokedaddy



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PostPosted: Wed Dec 14, 2016 12:47 pm    Post subject: Reply with quote

Update: I stuck an objective in it and it seems to work fine to me. I didn't try a stack, just viewing. If I made a working one I'd make it a little shorter in the Z direction.

-----

I haven't drilled and tapped this yet for the set screw but it fits perfectly in the dovetail.

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ChrisR
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PostPosted: Wed Dec 14, 2016 4:19 pm    Post subject: Reply with quote

Looks good Smile. What material do you use?
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