Re: [ATM] Coulter Vs GSO mirrors

["John Sherman" <atmer@johnspics.com>]

Hi Ozzy,

> Using a 12" f/5 mirror
> there is a Coulter 13.1" f4.5
> the two mirrors ie: focal length and diameter are different.

Eh? There's not much difference in diameter, and the focal length is only
about an inch different. So the answer is obvious. Get both mirrors. You can
make a single scope that will handle them both interchangably, or you can
make two scopes. It is easy to make a second scope as you're making the
first one. Either way, when you're finished you can test both mirrors at
your leisure. If you don't like one, sell it! (or refigure it, but that's a
different story)


>One pays for what he gets.   But sometimes one pays for what
>he doesn't get....

Jerry, spendid way of putting it! Just because the manufacturer claims a
mirror has certain specs, that doesn't mean the mirror actually HAS that
quality. I know this from painful experience.

John





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