MicrobeHunter.com Microscopy Forum

Although the Lumipan originated in the 30's, the design persisted long enough into the 50's that some of the optics produced for it, must have been coated. Although the theory of using contact polymers to clean lenses is sound, the practice of it requires a high degree of precision and knowledge of...

Thanks! It's a good tip!

I've come across it earlier, i will use it when the gathering of cleaning materials is completed.
Or, if you will, "Im on it!"
:0)

Edmund Optics is the place, but the price per square meter is devastating! Good tip! :0) To replace the shrivelled polarizing filter in my microscope https://a-zproj.blogspot.com/2020/01/lumipan-microscope-from-1950s.html I intend to buy 25x25mm of the following (below) and cut it to somewhere betwe...

"I don't think it will remove gummed up immersion oil" I agree. I think the polymer is good for dust but there are several types of dirt I think your three alternatives are better suited for. To what degree the polymer is more useful that compressed air is a question still to be resolved. I've order...

Thanks!!

I feel good already :0)

"Some 3D-cinema glasses" could be a source, not explored yet, so that's a good suggestion. I've tried to find polarizing sheets but what I found won't do in this context, they were for producing polarized light from spotlights. OK, I'll try the 3D glasses, that would correspond to what I was after. ...

OK, back to business.
The filter is depicted at
https://a-zproj.blogspot.com/2020/01/lu ... 1950s.html
Best, Per

Arrrgh! I have to fix the dinner! will return somewhat later w. a full stomach!
/p

Will do1
Preparing...

Thank you for suggestion! Appreciated!
/Per

HI! I want to clean up my Carl Zeiss Lumpian LPE microscope real good. If I ever succeed to dismantle it without destroying it THEN I really want it to be ATOMICALLY clean. The absolute best solution to do this i using First Contact polymer goo. Of that I'm convinced. I'm also convinced they're tryi...

Hi! When trying to find a remedy for the low image quality in my Lumipan LPE Microscope, I found that a polarizing filter in the bottom of the "ocular assembly" or "head" was shriveled, creating the irritating shadow in the pictures I took of some test glasses with pollen. The effect was so deleteri...

Hi! I'm interested in a way to dismantle my microscope to be able to clean (preferably) all lens elements. Especially the "head" (or "Tubusträgerkopf" as it's called in this document: https://www.amuseum.de/mikroskopie/Downloads/Zeiss_Lumipan_small.pdf ) where the oculars sit. My translation would b...

[ This suggestion might classify as "off topic" depending on the degree of fundamentalism applied :0) ] If you're just looking for the cheapest, still very effective, solution to microscope photography AND you're the owner of a smartphone maybe this can be a solution: https://www.ebay.co.uk/itm/2830...

My working life: 1978-1994, service engineer at Data General and 1994-2015 systems engineer at Örebro University. My occupation nowadays are programming, photography and wood working. I bought a Lumipan LPE from a flea market, a month ago, for around $150, in a wooden box an a complete set of lenses...