From: "Poul Linnet" 
To: 
Reply-To: "Poul Linnet" 


After reading Nils Olofs excellent article on collimation in S&T Jan
2003, I began wondering whether a marking at the physical center of the
mirror blank always corresponds to the center of the parabola  within 1 mm
as required for proper collimation?

Poul Linnet

Email:             poullinnet{at}city.dk
Homepage:     http://poullinnet.homepage.dk

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