In case you use an inverted microscope you are limited to 220 microns.
Hope this helps
=============================================================
____________________________________________
|Dr. T. Porwol |
| |
|MPI fuer molekulare Physiologie |
|Rheinlanddamm 201 |
|P.O. Box 10 26 64 |
|44026 Dortmund |
|FRG |
| |
|Telephone: +49-231-1206-534 |
|FAX: +49-231-1206-530 |
|email: [log in to unmask]
--------------------------------------------
============================================================