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Re: [OM] Various lens sharpness numbers at various apertures

Subject: Re: [OM] Various lens sharpness numbers at various apertures
From: lclark@xxxxxxxxxxx
Date: Sat, 09 Jan 1999 23:08:55 -0500
In <01BE3ADB.8728CF00@xxxxxxxxxxxxxxxxxxxxxx>, on 01/08/99 at 07:50 AM,
   Dave Bulger <dbulger@xxxxxxxxxxxxx> said:


>This is gonna bug me until I know exactly what aperture each of 
>my lenses is sharpest at.

You could do worse than to use the rule of thumb that a lens approaches
its optimum performance about two to three stops down from its maximum
aperture.

les clark 
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lclark@xxxxxxxxxxx
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