Jetz habe ich mein amateurchirurgie aufgegeben. When removing the Schwalbenring i found that the beam splitter prism is fastened to the ring and to replace the ring with anything else will not just involve 3 screws but several, plus a collimation and centering problem. So the project is paused until I decide to castrate the microscope I snatched the binoviewer from in ordr to use its snap-in mount.

Removing interchangeable parts from classic equipment is allowable, but irreversibly (?) destroying is another matter.

p.