Re: any ideas how lens broke?

Posted by Eric Shelden on
URL: http://confocal-microscopy-list.275.s1.nabble.com/any-ideas-how-lens-broke-tp7582371p7582372.html

*****
To join, leave or search the confocal microscopy listserv, go to:
http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
Post images on http://www.imgur.com and include the link in your posting.
*****

Is the microscope an upright or inverted? I have seen this happen with our
own zeiss 200M inverted microscope. The free space between the top of
the lenses and the underside of the stage is not large. If a chamber is on
the stage that requires focusing up higher than usual with a lens on the
opposite side of the turret, it  is possible for a large lens like the 63X to
make contact with the  underneath of the stage with enough force to
damage it. It may be possible  to set a travel limit that prevents this,
although users might override it to  reach their specimens. Unfortunately,
the cost for repair is probably close  to the cost of a new lens.