Re: Zeiss Universal Or Leitz Othoplan...Which One Would You Buy?

On Oct 27, 2:54 pm, Too_Many_Tools <too_many_to...@xxxxxxxxx> wrote:
On Oct 27, 8:30 am, Kevin Cunningham <sms...@xxxxxxxxxxxxxx> wrote:



On Oct 26, 9:34 pm, Too_Many_Tools <too_many_to...@xxxxxxxxx> wrote:

On Oct 26, 3:22 pm, Kevin Cunningham <sms...@xxxxxxxxxxxxxx> wrote:

On Oct 26, 3:05 pm, Too_Many_Tools <too_many_to...@xxxxxxxxx> wrote:

On Oct 20, 9:32 pm, Too_Many_Tools <too_many_to...@xxxxxxxxx> wrote:

I have an opportunity of buying either a Zeiss Universal or a Leitz
Othoplan.

Which one would you buy and why?

I have been searching for information for both scopes and have found
very little.

Any suggestions as to where one can find more information on these
scopes?

Also...how easy and affordable are other lighting options (phase, DIC,
fluorescence, polarized light) to find for these scopes considering
that they are older scopes?

Thanks

TMT

Okay...it is starting to look like getting accessories for the
Orthoplan...or for that fact any Leitz is a major pain.

And of course no documentation has surfaced for the Orthoplan.

Could someone who knows tell me what options were available for the
Orthoplan?

Like what eyepieces, objectives, condensors and lighting options.

And if you know something on how DIC was implemented, I would like to
hear about that too....there is nothing out on the Web. It would be
interesting to see how Leitz approached that application versus Zeiss.

Thanks

TMT

First every possible thing you could add to a microscope was available
for this 'scope. Beautiful NPL fluorite objectives, apos, really nice
eyepeices, etc. However Nomarski wasn't, they used a system called
Smith T, it worked similarly but it was a pain to add. The genius of
Nomarski was its simplicity. Smith T works but it is more complex.
Fluorescence was gorgeous. Of course the original filters probably
won't work or work well, replace them with

Thanks,

Kevin Cunningham
SMS- Hide quoted text -

- Show quoted text -

Thanks Kevin for the information.

I will look into the Smith T.

I see that the Orthoplan uses larger eyepieces than what I am used to
seeing...30mm?

Can this scope use other maker's stereo eyepieces?

TMT

Just in general you should never, ever do that, you don't know were
they've been. No, but eyepieces are a part of the 160mm tube length
system. Since Abbe's time some makers have fixed some optical
problems in the eyepiece and some in the objective. This is purely a
manufacturers decition. Its far, far better to get the manufacturers
eyepieces.

Thanks,

Kevin Cunningham
SMS- Hide quoted text -

- Show quoted text -

Understood....that has been what I have learned also.

Other than knowing the model number of the eyepieces that were meant
for a scope, how else can one tell that you have the proper eyepieces?

And without proper documentation which is usually the pricing list,
you don't have the model number.

And of course part of my previous discussion has been not being able
to find documentation.

Now my kids know why I am losing my hair. ;<)

In reality, I have seen numerous scopes using different eyepieces than
what the manufacturer meant for them.

Some work..kind of ;<)...and some don't work...and then the user
blames the manufacturer for a faulty product.

Has anyone ever formulated a rule of thumb of whose do work and whose
do not?

I also note that the Orthoplan I have been offered is a 170mm tube
length.

I assume that there are 160mm and 170mm versions of the Orthoplan
considering that length of production and that Leitz changed from
170mm to 160mm tube length?

Another question...I was just looking at an Ortholux II and noticed
that the objective turret looks similar to the Orthoplan objective
turret...are they interchangeable? (Again keeping in mind the 160mm/
170mm issue.)

TMT

TMT, The good news is all manufacturers made a limited line of
eyepieces. The most used ones, the standard 10X ones worked in all
their compound instruments. Now, all manufacturers made super wide
field, these are easy to figure out since there a lot bigger, about
30mm rather than 23mm. Using another manufacturers eyepieces is just
dumb, at best it doesn't work well and at worst it doesn't work.

Just to make it fun the Leitz 170mm standard wasn't actually 170mm, it
was actually 162mm. If push comes to shove I'd use a 170 on a 160,
particularly if the objective was a high power, short fl lens. There
won't be a lot of problems with a 2mm tube length difference. Leitz
made 170 and 160mm eyepieces, the 160mm had a slightly longer middle
piece, again as long as the two eyepieces were the same. The real
problem is the age, objectives keep getting better and better.

Thanks,

Kevin Cunningham
SMS

.

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