Nikon U Objective

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peter-h
Posts: 24
Joined: Thu Jul 02, 2009 5:32 am
Location: Germany
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Nikon U Objective

Post by peter-h »

Hello,

I need some help for 2 Nikon objectives.
http://www.mikroskopie-ph.de/Nikon-U.jpg

I have no datasheet and dont know anything about the application.
May be for reflecting light ?
For the U20 there is a Code No. MSB-52-200 . The year was 1983.

Has anyone some more information about this 2 Nikons ?

Best regards
Peter

Planapo
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Joined: Tue Nov 07, 2006 2:33 am
Location: Germany, in the United States of Europe

Post by Planapo »

Peter,

Some information on these Nikon objectives can be found here:
http://www.photomacrography.net/forum/v ... hlight=u20

--Betty

Tonikon
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Joined: Thu Oct 30, 2008 2:58 pm
Location: Italy
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Post by Tonikon »

Ciao Peter,
I have the Nikon U10 and the Nikon U20; they are achromat iris-equipped metallurgical objectives.
The Nikon U10 (that I use currently) is a very good choice for photomicrography at 6-8x; the Nikon U20 is a good choice but only with 200mm or more of tube lenght (if not, you have very bad corners).
Working distance is about 15mm (that is excellent for a 10mm!).

CIao

Toni

peter-h
Posts: 24
Joined: Thu Jul 02, 2009 5:32 am
Location: Germany
Contact:

Post by peter-h »

Thank you for your information. I found what I sought.

Best regards
Peter

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