Zeiss Jenamed 2

[Adrian T.]

I have a Zeiss Jenamed 2 microscope that is in fairly good condition,
except for the stage. The stage seems to have utilized a system of
pulleys and belts, and many of these parts are missing. As this is a
former East German Zeiss, does any one know where I could find a
replacement stage, or perhaps a parts or instruction manual?
Concerning the objectives: they are all planachromats, and besides the
usual Mag., NA and Oil immersion(Hi) rating they also have other
notations which I am not certain I understand:

Planachromat 5x/0.10 (infinity symbol)/—A
Planachromat+ 10x/0.20 (infinity symbol)/—A
Planachromat 40x/0.65 (infinity symbol)/0.17—A
Planachromat Hi 50x/1.0 (infinity symbol)/0—A
Planachromat Hi 100x/1.3 (infinity symbol)/0—A

In particular, why the designation "+" on the 10x, and, while the .17
is for cover slip thickness, what does the " (infinity symbol)/—A "
and the " (infinity symbol)/0—A" indicate?

Thanks for any information that can be provided.
Adrian

[Klaus Henkel]

Post by Adrian T.
I have a Zeiss Jenamed 2 microscope that is in fairly good condition,
...
Concerning the objectives: they are all planachromats, and besides the
usual Mag., NA and Oil immersion(Hi) rating they also have other
Planachromat 5x/0.10 (infinity symbol)/—A
Planachromat+ 10x/0.20 (infinity symbol)/—A
Planachromat 40x/0.65 (infinity symbol)/0.17—A
Planachromat Hi 50x/1.0 (infinity symbol)/0—A
Planachromat Hi 100x/1.3 (infinity symbol)/0—A
In particular, why the designation "+" on the 10x, and, while the .17
is for cover slip thickness, what does the " (infinity symbol)/—A "
and the " (infinity symbol)/0—A" indicate?

An A means an objective without chromatic difference of magnification.
This objective has to be used with an ocular without chromatic
compensation.

The indication 0 instead of the missing 0.17 on objectives 50x and
100x means, that they must (!) be used without any cover glass.
The indication /-A normally means that the obj. may be used with or
without a coverslipy.
I cannot find any statement for the "+" on the 10x obj. This obj. has
a rather small n.A., so it must be constructed for a special usage.

KH

[Kevin Sunley]

Try Desna Laboratories (http://www.desna.com/) for service of East
German Carl Zeiss Jena, JENA or ausJENA microscopes. They are who Carl
Zeiss Inc. have referred me to with questions regarding the service of
the East German Zeiss microscopes.



Kevin
--
Please remove "REMOVE" from reply address if responding by e-mail.

Post by Adrian T.
I have a Zeiss Jenamed 2 microscope that is in fairly good condition,
except for the stage. The stage seems to have utilized a system of
pulleys and belts, and many of these parts are missing. As this is a
former East German Zeiss, does any one know where I could find a
replacement stage, or perhaps a parts or instruction manual?
Concerning the objectives: they are all planachromats, and besides the
usual Mag., NA and Oil immersion(Hi) rating they also have other
Planachromat 5x/0.10 (infinity symbol)/—A
Planachromat+ 10x/0.20 (infinity symbol)/—A
Planachromat 40x/0.65 (infinity symbol)/0.17—A
Planachromat Hi 50x/1.0 (infinity symbol)/0—A
Planachromat Hi 100x/1.3 (infinity symbol)/0—A
In particular, why the designation "+" on the 10x, and, while the .17
is for cover slip thickness, what does the " (infinity symbol)/—A "
and the " (infinity symbol)/0—A" indicate?
Thanks for any information that can be provided.
Adrian