Re: Rating Newtonian Mirrors
From: popo kabulamnsb (musytst_at_wiey.org)
Date: 03/22/05
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Date: Tue, 22 Mar 2005 00:33:40 -0600
Cant trust his reports! He fudges and then claims later he didnt mean what
he said, or didnt say what he meant, or his back was hurting, or the grass
was
high on that day, hiswife was pregnant and needed to get to Tokyo .... or
some
other crisis.
Good luck.
jameswilliamjohnson@yahoo.com wrote:
> Mark Harry is reported to make good mirrors (5 to 12", including longer
> focus planetary scopes). Sometimes the mirror ratings can seem pretty
> high but he uses rouge for the final figuring and emphasizes a smooth,
> zone-free parabaloid - which is very important.
>
> Jim Johnson
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