epabcc@epa.ericsson.se (Bratislav Curcic) writes:
> 6"). Another thing is that it won't be good for high quality work
> (say, visual scope) because you will grind/polish in all the errors of
> a vacuum pan (something finished on a lathe hardly qualifies as an
> optical surface !).
The accuracy of the vacuum pan only matters at the edge since that is the only contact with the corrector plate. If you are really concerned you can grind it flat very easily.
Cheers
Lou
Lou Sanchez-Chopitea EMail: lou.sanchez-chopitea@xilinx.com Senior Software Engineer SnailMail: 2100 Logic Drive SpeakMail: (408) 879-5059 San Jose, CA 95124 FaxMail: (408) 559-7114 #include <disclaimer.h>