Advice on teaching microscopes

[Richard Cyr]

We are planning on purchasing new microscopes for our introductory biology labs
.  The top runners are the Nikon YS2, the Leitz ATC2000, the Zeiss Model 16, an
d the Olympus CH2.  Optically, they are comparable.  The decision comes down to
 wear and tear by eager, yet brutal, UGs.  Any advice by experienced users woul
d be greatly appreciated.
Thanks,
Richard Cyr
RJC8 at email.psu.edu