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Re: [OM] Digital and the 100/2 - Lenses, not Lipitor

Subject: Re: [OM] Digital and the 100/2 - Lenses, not Lipitor
From: "Wayne Harridge" <wayne.harridge@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 20 Sep 2011 09:48:48 +1000
Here is a link to the test images:
http://lrh.structuregraphs.com/test/tamron_90_re_reflect.htm

Note last image was on film so looks somewhat different to those shot with
the E-300.

...Wayne

> 
> I tested a number of lenses for this problem, all my Zuikos, some
> Nikkors
> and some independents.  The worst offenders were a Tamron 90/2.5 and a
> Nikon
> 50mm/1.8 (E series).  I did manage to duplicate the problem on film but
> the
> effect is very much reduced and would probably go unnoticed in anything
> but
> a controlled test.
> 
> If you're not satisfied with the Z 100/2 I'll gladly take it off your
> hands
> !
> 
> ...Wayne
> 
> 
> 
> >
> > So, I take those sunset pictures the other night with the E-1. I
> showed
> > the
> > results of an HDR shot on Zone-10 and mentioned it here.
> >
> > What I didn't mention was that this third attempt at getting the shot
> > without getting a dreaded hotspot in the middle portion of the
> picture.
> > This
> > is something we've seen a small handful of lenses do with digital
> > sensors,
> > but I'm not recalling off the top of my head whether or no the 100/2
> > was
> > also susceptable to this.
> >
> > The film version of the shots were no problem--only the digital.
> >
> > I haven't seen this with other shots, but when shooting into the
> bright
> > sunset it showed up when the aperture was closed down quite a bit.
> > Opening
> > it up made the hotspot disappear.
> >
> > AG
> > --
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