I am Jennifer from Amsterdam, The Netherlands. I am new here and started with microphotography about two years ago, but I have been a micro-, and marine biologist for a long long time.
Just bought myself a second hand Leitz Orthoplan microscope with a Leitz Wetzlar 402a phase contrast condenser. Upon testing and cleaning the microscope i found out that I cannot get the turret to rotate. I have disassembled it, but it won't give.
Does someone have any idea on how to fix this? I have not been able to find the solution on the internet yet

Many thanks,
Jennifer