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Guy,

Thanks for filling in some gaps in my microscopy lore!  The existing eyepieces appear to be compensating, but given that this scope is a flea market piece, there is no guarantee that they are original!

I'll try to reinstall the ball bearings on the stage once I find them again. 

Chris Tully, M.S., Image Analysis Expert
t 240.475.9753 f 419.831.0527 | [log in to unmask]

Sent from my iPhone please excuse typos.

On Aug 10, 2013, at 10:53 AM, Guy Cox <[log in to unmask]> wrote:

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> 
> This will be a postwar but pre reunification scope.  It will have 160mm tube length so just about any old (fixed tubelength) eyepieces will work.  If you are being fussy you should check whether they are compensating or non-compensating.  (Look at a piece of white paper through the eyepiece - not the microscope - and a compensating eyepiece will have a yellow rim to the field of view, while a non-compensating one will have a blue rim).  The stage is not exactly rocket science so with care and a set of small screwdrivers you should be able to repair it.  The mysterious pieces of glass are probably just that, but would provide for fitting an analyser if the microscope was being used for polarized light, or contrast-enhancing filters for certain stains.  Einbau means installation or mounting I think.  
> 
>                                                   Guy
> 
> -----Original Message-----
> From: Confocal Microscopy List [mailto:[log in to unmask]] On Behalf Of Chris Tully
> Sent: Saturday, 10 August 2013 5:03 AM
> To: [log in to unmask]
> Subject: seeking parts for an OLD Zeiss microscope
> 
> *****
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> 
> Dear list,
> 
> No strictly a confocal question, but maybe somebody can help...
> 
> I have an old (maybe ancient) Zeiss microscope. The only identification on it is Carl Zeiss, West Germany. It is a binocular microscope with a 4 position nose piece, a bright field/dark field condenser and a built in light labeled "Einbau - Trafo" which translates at mini transformer according to Google.  The ocular tube is 22 mm diameter, and the objective thread is 20 mm diameter as closely as I can measure it.
> 
> The scope generally works fine, but it has two significant flaws:
> 1. Something in both oculars has started to delaminate and I see distinct artifacts of this in low light conditions.
> 2. The X axis of the stage has broken loose (the ball bearings have popped out).
> 
> For most of what I do with this scope (showing my daughter things at
> home) it is fine, but it would be nice to have a working stage and clean oculars. So if you have any old oculars sitting in a drawer that you could send my way please let me know. If you have a functioning stage, I'd love to get one; but it's not that difficult to use the scope without the stage clip.
> 
> Another question: on the body of the microscope, right hand side just below the binoc is a small stainless steel nob. If I take the binoc off, it reveals a small piece that flips one of two filters into the light path (one is always present). I can see no difference in the image whether I am in bright field or darkfield mode, so I am ssuming that both are currently clear glass. Does anybody know what this piece is intended to do?
> --
> *Chris Tully*
> Principal Consultant
> 240-475-9753
> 
> 
>      Image Incyte, LLC
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