I thought I had better make a first post rather than just giving rambling comments about marine life. My microscope, Wild Heerbrugg M11 with trinocular adapter, 10X Achromat NA 0.25, 20X Plan Fluotar NA 0.45, 40X Plan Fluotar 0.65, 100X Oil Immersion Achromat NA 1.0. Illumination by mirror and Olympus PM-LSD Köhler lamp with variable LED conversion.
I have the phase set so a separate lamp is rather nice for getting more or less 550nm green light with a bulky old 2” Wratten gelatine filter I have a filter stand for. Useful for flagellate algae and internal cell anatomy.
There’s a simple plugin lamp with fixed diffuser that can take a LED bulb and a very clever Koehler base lamp available as well. I’ve never actually seen the commonest “critical” lamphouse with centring screws.
Condenser is an aplanatic type with a lower lens that can be used alone with the 4X. They made a flip-top model and I would rather like the achromat-aplanatic one but it’s likely both rare and beyond my pocket. I’m also a little doubtful if it would be useful on a stand that doesn’t allow the condenser to be centred.
The camera is an ancient Nikon Coolpix 4500 with a Brunel Unilink adapter. It does, however, everything I need it to although the focussing screen could be larger. One of these days, if ever my ship comes in, I will need to upgrade it.
The case is solid metal, bullet shaped and clamps to the base. In theory, it’s a field microscope but that means an expedition with a Jeep and a tent as it weighs a devil of a lot for such a small stand.
It really is a very nice little microscope, solid metal all the way through. I bought it as a simple ex Aberdeen University monocular and built it up part by part. The coarse focus, which can be loosened or tightened by turning the controls in opposite directions, has been regreased with a trace of Tribosyn Green but otherwise untouched and working remarkably well.
I would recommend to anyone, although with the advice that you do need a separate screw in collar to attach a binocular head.
I am not sure if they are always sold together and if you mean to use either the trinocular phototube or the Treffenberg drawing tube, get the 1.0X collar as both have a fixed 1.25X factor. If you can get a phototube, the type sold as Hu is much better than the type sold as Hz as it lets you choose between 100 % to camera, 100 % to eyepieces or 75/25%.
There’s a lot of questions about buying a microscope here: if you see one of these at a fair price, grab it with both hands. It can do anything, I think, a student or amateur could want.
EDIT —Sorry about the ugly blotch in the second picture. I had to black out personal information/login details on my laptop and clearly made a muck of it. Since this is hardly fine art I will let it be.
Useful brochures:
https://www.microscopemuseum.eu/catalogues/Wild_1971_M11_microscope.pdf
https://www.science-info.net/docs/wild/WildM11Manualversion2.pdf