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87255

Leitz Lamphousing 20 -different types?

With all the interest in LED lighting, I thought I'd have a go and I fitted a 4.5W LED matrix to a Leitz Lamphousing 20. This reminded me of a question that
graham_comptonuk
1:18 PM
#87255
 
87254

Re: Recently Acquired Winkel Zeiss Gottingen petrographic

Hi Michael, Sounds like you have most of your descriptions correct. A picture of your scope and the areas you have questions with would be the best way to
charles.2211
Jul 29
#87254
 
87253

Recently Acquired Winkel Zeiss Gottingen petrographic

Hello -- I just acquired a Winkel Zeiss Gottingen petrographic Nr 37480. Does anyone have any info on this microscope? Starting with the eyepiece, it has what
mcwolfsonca
Jul 29
#87253
 
87252

Re: Nikon S-Ke interference-phase contrast

Yep Jim, you said just what I thought. How could you possibly expect the low-tolerance measurements of a "slider mechanism" for an optical assembly that
rich_guy_looker
Jul 27
#87252
 
87251

Re: Nikon S-Ke interference-phase contrast

I have one of these, got is several years ago. The "phase rings" on the slider had deteriated. It didn't work. Got another, also dead. I would be surprised if
jimgalvin366
Jul 27
#87251
 
87250

Re: Misleading microscope illuminator data by Zeiss West

Hi Gordon, Lovely to have you back on the group - your common sense and breadth of knowledge has been greatly missed! I do not think that your remarks
merv.hobden@...
Jul 27
#87250
 
87249

Re: Nikon S-Ke interference-phase contrast

Phase contrast is often done with semi monochromatic light, generally obtained by using a green filter; you might try that. Randall _____ From:
rbuck
Jul 26
#87249
 
87248

Re: Looking with contact lenses at eyepieces: problems

Stephano and Brian, I am reaching back in my memory that is clouded with the drugs I am taking for Multiple Sclerosis. I except you contacts are being included
gc_couger
Jul 26
#87248
 
87247

Thanks Gordon!

Gordon, so nice to see you back on this board after a long absence, and; once again, you're doing what you do best, which is saving members lots of money. Rich
rich_guy_looker
Jul 26
#87247
 
87246

Re: Wild M20 frozen fine focus

My experience is not specific to the M20, but I have found a number of older microscopes that have not received a recent service have grease that has congealed
Richard Radford
Jul 26
#87246
 
87245

Re: "Sliders"; Phase + Darkfield

Rich, Your best chance to get buy on the cheap on 4/3 camera is a Kodak Ektar 25.4 mm f 1.2 lens used as relay lens to view the eyepiece. The Kodak Ektars are
gc_couger
Jul 26
#87245
 
87244

Re: Misleading microscope illuminator data by Zeiss West

Merv, The lighting on most new microscopes is horrible. I finally decided my rant against imported junk was detrimental to the group as whole and I was
gc_couger
Jul 26
#87244
 
87243

Re: Nikon S-Ke interference-phase contrast

I have correct lenses. The Nikon S serie was for 160mm lenses. and as written in Nikon documentation: " permitting use of ordinary objetive mode for ordinary
adn25fr
Jul 26
#87243
 
87242

Re: Nikon S-Ke interference-phase contrast

You can try to see the variable phase plate using a phase telescope that is focused on the Polarization Diaphragm. You may or may not need special objectives,
rbuck
Jul 26
#87242
 
87241

Re: Nikon S-Ke interference-phase contrast

That is strange, but I can not read the posts of David Littlewood. The display begin and suddenly nothing!! Can somebody explain that or just copy the words
adn25fr
Jul 26
#87241
 
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