No idea for solving the quiz but the stereo relief is extremely nice.

Very interesting.

(maybe not so much for the female moth, who knows?)

Billy B wrote: ↑

Tue Aug 04, 2020 7:36 am

Are you aware of any sources, other than China, for adaptors ?

Rafael from Belarus makes very good stuff, but shipping in the current circumstances could be very slow
https://rafcamera.com/adapter-m52x0-75m-to-m25x0-75f

If it is like this:

it's a good one

The model number and OFN (field number) are not printed in all samples

...However generally I see the use of 2 polarisers being called "polarised light", I suppose it doesn't necessarily imply full XPL at maximum extinction. Just to clarify some concepts: - With just one polarizer you have polarized light. With two you can play with the angle of the analizer relative ...

Weak polarisation but I can assure you that it's cross polarised. I suppose that's the partial cross polarisation you refer to? Yes, this seems what is called partially crossed pol. Crossed refers to the maximum extinction of light with no sample, period Parallel polarizers is at 90º of crossed, an...

...with no fish, maybe

Macro_Cosmos wrote: ↑

Tue Jul 28, 2020 11:23 pm

...
Cross polarised, Dmap, 10x oly.

The image doesn't look cross pol at all, it seems like bright field, could you clarify your technique, please? (partial crossed pol, Xpol with 1/4 plate...)

Excellent slide and very well imaged, BTW

Almost for sure they will be gypsum or anhidrite, both Calcium sulphate.

Hola Adolfo,

El diámetro del cilindro en la parte que encaja en el tubo es de 40mm y la distancia entre el asiento y el centro del primer filtro también de 40mm

There are fiber optic light guides that end in a flat bar rather than a round point. I wonder if these would be flat enough to use on a setup like this. Time go I did some tests with my dual gosseneck FO guide and it was very difficult to set up but worked well enough to prove the idea. I saw those...

The double fluorescence cube is named "2Fl" and it's the same used in the Fluorocondenser IV for Standard and WL pictured in the linked auction.
I have several of them, but, sorry, all are in use. With a bit of patience it's not rare at ebay. The filters are 18mm and the dichroic BS 22mm

nigeldodd, The setup shown by Charles uses a special projective eyepiece (the Olympus NFK) deigned to do it. With a normal visual eyepiece you could also do the same just raising it few millimeters or (with low magnification objectives) just re-focusing the microscope. Not ideal but working well eno...

Thanks, now this has sense

Nice stack but...

Adalbert wrote: stacked by the FB of the M6M2 (77 * 3)

I understand nothing, could you be clearer, please?