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RE: [OM] 50mm f1.4 lens

Subject: RE: [OM] 50mm f1.4 lens
From: Chip Stratton <chipstrat@xxxxxxxxx>
Date: Tue, 8 Feb 2000 11:23:08 -0800 (PST)

--- "Barry B. Bean" <bbbean@xxxxxxxxxxxxxx> wrote:
> What happened at f/2.8? Looks like testing error.
> 
> BB
> 
> On Mon, 07 Feb 2000 20:11:41 -0600, Chip Stratton
> wrote:
> 
> >f   Center (l/mm)  Corner(l/mm)
> >1.4   VG  55        Exc 49
> >2     VG  62        Exc 55
> >2.8    G  62        VG  55
> >4     VG  69        Exc 69
> >5.6   VG  69        Exc 62
> >8     VG  69        Exc 62
> >11    VG  62        Exc 55
> >16    VG  62        Exc 55

It has to do with what Modern Photog. calls Good or
Very Good. Compared to other like lenses at f2.8, the
Zuiko was only 'good' at the center. So it didn't
improve enough at that aperture to stay in the Very
Good zone.
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