Steve's formula has nothing to do with area, John. It certainly looks correct to me.

--

J. C. O'Connell wrote:

Dont agree, see my earlier post, Svens measurement was linear, not area,
and my calculation is correct for linear.
JCO

----------------------------------------------------------------------------
   J.C. O'Connell   mailto:[EMAIL PROTECTED]   http://jcoconnell.com
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-----Original Message-----
From: Steve Jolly [mailto:[EMAIL PROTECTED]
Sent: Monday, January 26, 2004 7:48 AM
To: [EMAIL PROTECTED]
Subject: Re: D: SMC 1.4/50mm FA / APS vs FF


Steve Jolly wrote:


So, if the lens and sensor both have an individual resolution of 50
lppm, you ought to get a combined resolution of
1/sqrt((1/50)^2+(1/50)^2), which equals 35 lppm.


Sorry, I should have said: that explains the difference between Sven's
measurement and JCO's calculation. :-)

S



-- graywolf http://graywolfphoto.com

"You might as well accept people as they are,
you are not going to be able to change them anyway."




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