I am going to post this, at the risk of getting laughed off the net. Someone mentioned something recently about oblique illumination. When I bought my Nikon...
Hello, Gary: No risk to be "laughed off" with using some experimental approach to increase contrast. Moving the light cone of the condenser slightly out of...
Hi Tom, it's a common misconception to assume that planapos should give best contrast just because they are best corrected. I guess all lenses are compromises....
Hello Gary, Gregor is absolutely right, you just need some time to chew on the answer he's given you... To give a more simple answer, when all is setup right,...
I exptet two razor blade coated wiht sooe wold find the sweet spot prety Qick. Gordon...
Gordon Couger
Gordon@...
Feb 1, 2004 11:26 am
13794
... If I may ask, though, what is the guarantee of authenticity? Unfortunately there is a lot of dubious material out there right now, and just about everybody...
Don H
morningstar@...
Feb 1, 2004 1:53 pm
13795
Hi ya'll :-) Jim, as always, your great advice is vastly appreciated. I have an issue with my Nikon 'scope that I'm trying to chase down. I cannot evenly light...
Don, You raise some serious questions. Authenticity is everything in the field of meteorite collecting. I have been collecting actively since 1961. When I...
Hello, Steve: Thanks a lot for the detailed information about meteorites. Although my understanding of petrology is rather limited I find thin sections of rock...
Hello to everybody. Having followed with great interest the discussions about meteorites. How on earth ( please excuse the phrase) can any celestial object be...
... The answer to that question is a complex one. Basically, the rock types and conditions of formation of terrestrial species are well known and documented....
Don H
morningstar@...
Feb 1, 2004 7:22 pm
13800
Dear Randy: I'm sure we will eventually figure out what a coherence diaphragm is, might have a slit with a polarizer covering half the slit??? Seems if you...
This is very interesting. I assume that rocks in space cool much slower than on Earth because the rock in space can only release heat via radiation while on...
... meteorites. How on earth ... to Mars, or any other plaice in particular come to that? I appreciate that this question is just about ... been made to the...
Hi everyone, I have a question for the more knowledgeable among you. I have been experimenting with high intensity LED's. I have put them directly under the...
Interesting idea.... less heat too... I like it! there is UV filtering material you can get.... we DO need to explore how much UV is being emitted though.......
... evenly ... with ... the ... any ... it ... Hi Ray, Sorry I can't answer your question, but I am eagerly awaiting the answer from someone else. Just last...
... Thanks for the excellent and detailed answer. It addresses a lot of questions I had myself. Don...
Don H
morningstar@...
Feb 1, 2004 10:01 pm
13807
I have heard of people glueing these right to the edge of the slides. Brgds, Ron ... __________________________________ Do you Yahoo!? Yahoo! SiteBuilder -...
I have read a lot about optics in microscopy but I am the kind of person that needs to do problems and labs. Does anyone know of some online tutorials covering...
After spell checking I expect two razor blade coated with soot would find the sweet spot pretty quick....
Gordon Couger
Gordon@...
Feb 1, 2004 11:13 pm
13811
Yes, Steve, It would have been an actual AO part, in an AO box with AO accessories, but due to the low volume manufacturing of "K" items, may not have been ...
Hi I just bought a hih intensity white light from a major seller of components. The output is qiote enormous. Even at 15mA. But, according to thgis guy who...
The new Nikon Eclipse 55i comes with LED illumination. Apparently, Koehler illumination can be established with an array of LED's. But regarding to coherence...
Hi Gordon Never mind too much about your spelling. I understood the first anyway. Un-spell checked. Not then, instead of soot, can one use matt black paint? ...
Hi Ray and the group. I have used this sort of illumination on a Zeiss stand for some time.I removed the original tungsten lamp and replaced it with the LED....
Hello to all, here there are some my new protists small movies with Zeiss DIC (plan 40X/0.65). They are the first try with my new firewire 1024 X 768 camera. ...
There was someone (in Australia) who briefly offered a device he called "LEDlyte" which was supposed to fit ina microscopr in the place of the condenser. I...
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