Here is a manual that was sent to me with IM microscope and another I found online – that one is for IM-35 version which I think is version with SLR camera adapter which isn’t on the scope I bought – different binocular head.
Andy
Instructions that came with Zeiss IM microscope 100117 (came with microscope)
Zeiss IM Microscope Instructions accessed 130117 (accessed from internet – slightly different model)