I am sure I came across some special low temperature lenses and
     cooling systems for looking at ice cream. If I can remeber wher I saw
     it, I'll let you know.

     Anna Smallcombe PhD Bio-Rad


______________________________ Reply Separator _________________________________
Subject: Re: Low temperature confocal
Author:  Confocal Microscopy List <[log in to unmask]>  at
Internet
Date:    14/01/98 18:50


When I was working on a prototype transmission confocal microscope, I did some
experiments with imaging a frozen block of tissue on a cryostat.  With long
working distance objectives in a dry atmosphere it worked very well.  I was
able to use vital stains on large tissue pieces, then freeze them and image
the distribution of fluorescence.  However, I was only going down to dry ice
temperatures.

Good luck!

David
oQQQQQ@

InSight Biomedical
919 Filley St.
Lansing MI 48906