From: "Mel Bartels" 
To: 
Reply-To: "Mel Bartels" 


>>>
I'll ask an obvious question here:  how many major optics manufacturers
(small and large volume) use star testing regularly as part of their
figuring process?  Zambuto?  Pegasus?  And the list goes on and on. (Some
do, but that's a minority.)
<<<

Well it surely is a time issue for the pros, and besides, why should they?
Their production process should yield consistent figures and perhaps early
on they did a little star testing to verify but from that point on, you
don't need to keep star testing every optic.  I see star testing of
greatest value to the one-off amateur who needs a little verification that
their mirror is going to perform as they expect it to at the eyepiece.

Mel Bartels

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