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Re: [OM] [OT] Center filters

Subject: Re: [OM] [OT] Center filters
From: Jez Cunningham <jez@xxxxxxxxxxxxxx>
Date: Tue, 21 Jul 2009 12:10:05 +0200
"Trust but verify" ... :-)

On Mon, Jul 20, 2009 at 7:35 PM, Chuck Norcutt <
chucknorcutt@xxxxxxxxxxxxxxxx> wrote:

> Thanks.  I double checked your 90mm on 5x7 = 18mm on 35mm calculation
> since I didn't think off the top of my head that 90mm on 5x7 would be
> quite that wide.  I found the respective angles of coverage to be within
> a fraction of a degree.  :-)
>
-- 
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