Roman, I use two microscopes. DIC and FL have to Polish microscope of the eighties Biolar. On the second I have other techniques.
Here's a comparison Biolara and BH2.
http://daniel.nardin.pagesperso-orange.fr/PZOBiolar.htm
Biolar advantage is that it can be put to any lens / tested a lot of /. I use Nikon lenses CFN Plan Apo / 10, 20, 60 and 100 / and 40X Plan Fluor.
snail eggs
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