Re: [ATM] mirror cells and parabola...

["Stephen Koehler" <s.c.koehler@gmail.com>]

Norm,

> I've been thinking about figuring too, and running some numbers...it seems
> to me that parabolizing an f/5 doesn't really buy me much.  Well at least as
> far as my eyeball is the limiting factor in the system.  The difference
> seems so miniscule that my eye wouldn't know the difference, tho i could be
> doing the math wrong as far as the Raleigh standard is concerned....  Does
> the correction help in other ways??? chromatically...etc.?

Can you elaborate on your reasoning led to the conclusion that leaving
a 12" f/5 at a sphere was acceptable?  The conclusion is wrong.
Perhaps it would be instructive to see where the error crept in.

-- 
Steve Koehler
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