help needed on phase contrast microscope

[J. A. Kiernan]

In article <493c8i$kkj at news.iastate.edu> wolfwang at iastate.edu (HaHaHa!!!!!) writes:
>Subject: help needed on phase contrast microscope

>I need the information on how to setup the phase contrast mode microscope
>from a general type microscope. which kind of components i need to add to
>it? a filter or a condenser? any information is appreciated. 

     You need a special condenser and a set of special objectives.
     Any microscope supplier will joyfully sell them to you. The
     principles are explained in any textbook of microscopy written
     after about 1930.