Charles Guevara <icecilliate123@...> wrote: "Thanks for the terrific 'web-resource: buyersguide content ' you have shared with all, 'germpore'. Sorry to say I...
Some how I mangled that baldly. Here is a better try -gordon From: "sowjanyaaa" <sowjanyaaa@...> Date: Fri Apr 25, 2008 1:39 am Subject: hi can i join in...
From: "sowjanyaaa" <sowjanyaaa@...> Date: Fri Apr 25, 2008 1:39 am Subject: hi can i join in u r group Spending some time reading the old messages and...
... that he could find himself locked into buying new at dealer prices. That seems very probable. Also, few of the Meiji listings were for optics, accessories...
... Hi, On the other hand, Meiji does have a plethora of accessories available if you buy new. I don't think the new, high-quality generation of Meiji...
Hi Fred, By far the most comprehensive text on microtome sharpening and sections is Steedman's "Section Cutting for Microscopy". A scan of it is archived...
Hi Bob, Ref yr last e-mail. I would probably go for the Leitz SM. It's a lot of microscope for the price. But I am somewhat conservative and apart from some...
Greetings! Thanks to Arthur at Roseoptics I now have a hand microtome with an AO 940 microtome knife and I'm looking for sharpening instructions. I've checked...
Selwyn, et.al; For me, this brief discussion has been an invaluable joy. Thanks to you all! Summing up my perspective, and addressing Selwyn's recent input: ...
... that ... for ... never ... a ... loss ... for ... to ... Hi I've found Loveland's 'Photomicrography: A comprehensive Treatise' 1970, vol II, very helpful...
Hi, Thanks for the interesting responses. There seem to be agreement that a phase ring does not affect resolution when an objective is used for BF. However,...
Hello all, I recently acquired a very nice Nikon 10X Filar EP; one of the benefits with this is a vernier that enable very precise measurement. Does anyone...
Hi Charles, I have used this label of "2nd tier" in my own descriptions of microscope brands. It refers mainly to the company size and market share, not...
Hello, I'm, new to this group. When I was a kid I really liked microscopes and what you can see with them. I recently decided to get back into it and decided...
Ross; Thanks for that... I understand my confusion now. Seems that the formula for an obscured Airy diffraction pattern (in this case, a phase ring in the...
Wikipedia describes the phase annulus as being located at a conjugate of the aperture plane (entrance pupil). This makes sense, because otherwise some portion...
Hi All My 2 cents worth. I have just spent the last 3 hours comparing a Zeiss x40 N.a 0.65 plan achromat with a Zeiss x40 N.a 0.65 Ph2 plan achromat in...
Hi Gordon, and group! Your wisdom , experience, and intrests ( all which you widely share, Gordon) are wonderful resource all know how to engage, simply 'post...
A while back, I commented on my satisfaction with a Meiji stereo. Some discussion was had on overall quality, and there was some speculation as to the...
Charles, We don't have the number of Reichart scopes in the US that we do AO, Leitz & Zeiss. I seem to see more reflected light model than transmitted light...
Hi everyone I thought that the phase annulus was located in the back focal plane of the objective (where the diffraction pattern is formed). Therefore would...
William, maybe I was confusing you here, but I was talking 2 different things. A phase lens used in brightfield is not limited in resolution, as it still has...
... Depending on the AO model, you should specify the mirror assembly or plan on doing some fabrication. For example, there is not much on the base of a Series...
... perfectly ... but ... Hi, Re. the two SM-Luxs you mention. The first from Mel Sobel will not achieve Kohler lighting and looks like it's fitted with the...
Thanks very much indeed for posting these vids. I have seen dense concentrations of bacteria in long established samples but have never seen a ring or swarming...
... Hi Charla, Thank you for the kind words. Actually, in viewing my movies after not looking at them for many months I can see *much* room for improvement in...
I have imaged the lines on A pellucida with a 90/1.25 Lomo Ph objective using oblique light. And also by off-setting the phase condenser itself.. If the n.a....
Rule of thumb? It seems to me that a lens whose entrance pupil is reduced by one-half of it's collective area, has lost a significant portion of it's ...
Yes, any phase telescope from any manufacturer should work. I switch from Leitz to Lomo to PZO and notice no difference. best wishes Mark ... [Non-text...
I have seen mentioned that an annulus 0.71 times the NA of the objective gives full resolution. But most phase annuli are roughly half the objective's NA. In...
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