Many adapters re-use the head and prisms of the microscope which leads to loss of light and aberrations, this direct mount projects the microscope's image directly onto the sensor giving the best picture possible. The dovetail on the microscope side is "standard" sized for Olympus heads, ~42mm wide ...
I was gifted an unused Ender 3 Pro two weeks ago and managed to model and print an adapter to connect Sony E-Mount cameras onto a 42mm dovetail used by microscopes.
Bed adhesion, leveling, stringing, clearance issues, blobs and permanently welded supports, I got to battle it all but thanks to the massive volume of community support I worked my way though.
Very cool! What kind of optical quality do you get? The action shot on thingiverse is pretty low resolution :( what does it look like at higher magnification? Any depth of field fun going on thanks to the big sensor?
The screenshot is a little lackluster but the video below shows it off better. The camera is an APSC sensor but the picture fills a full frame with very little vignetting. Up to 100x it looks pretty good but yeah, the DoF is literally micrometers thick.