[3dem] IPs

[Tom Walz]

We have been using IPs for quite a while now and I wanted to mention  
that IPs
have additional drawbacks. They are very difficult to keep clean  
(despite our
best efforts) and scratch easily (which is a problem because they  
regularly have
to be loaded into film holders and the IP scanner). As a result, many  
areas of
the scanned images are tainted and cannot be used. Replacing damaged  
IPs is
expensive. We also had severe issues getting our IP scanner fixed.  
For example,
we were asked to purchase expensive replacement parts for our  
dysfunctional
scanner without knowing whether this would fix the problem. We became so
discouraged with the IP system that we are now replacing it with a  
CCD camera.

Best regards,
Tom

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Thomas Walz, Ph.D.

Howard Hughes Medical Institute
Department of Cell Biology
Harvard Medical School
240 Longwood Avenue
Boston, MA 02115

tel:  (617) 432-4090
fax: (617) 432-1144

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