[ATM] A ronchi question
djd521 at verizon.net
Thu Mar 10 08:36:10 JST 2011
I think the Mobsby Null test is not recommend for optics faster than F/7.
----- Original Message -----
From: "Guy Brandenburg" <gfbrandenburg at yahoo.com>
To: "hermit" <hermit at outofoptions.org>
Cc: <atm at atmlist.net>
Sent: Wednesday, March 09, 2011 6:22 PM
Subject: Re: [ATM] A ronchi question
> Yes. A Mobsby null test was invented which does exactly that. WillBell sells it. However I could
> never get it to work.
> Sent from my iPhone
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