Re: ATM 7/8th thick

[Dave Sopchak <dsopchak@mac.com>]

Hi Joe,

>How big has anyone gone with 7/8ths thick plate yet.

I've got one that thick at the edge, 18.5" diameter (f/4.8). Works great.

I'm sure Mel's done thinner ratio mirrors.

>
>And for a thin mirror first timer how big would you
>all think of recommending?

That was my first thin mirror, if you don't count a 10", 1" thick one 
I did before that...

If you like, you can check out the grinding log I kept of the mirror, 
http://homepage.mac.com/dsopchak

Dave
-- 
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