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Re: [OM] diffraction, aperatures, f-stops, extensions

Subject: Re: [OM] diffraction, aperatures, f-stops, extensions
From: "M. Lloyd" <royer007@xxxxxxxxx>
Date: Fri, 8 Mar 2002 04:30:33 -0800 (PST)
But there were 2 20mm lenses made, which one was it
the 20/2 or 20/3.5?

Mark Lloyd

--- "C.H.Ling" <chling@xxxxxxxxxxxx> wrote:
> I have no experience on the Zuiko 20mm macro, but I
> have seen a macro
> book, the writer uses a lot of different gears,
> ranging from Leica to
> Nikon to Olympus. He said the Zuiko 20mm's
> diffraction problem was
> quite high which limited the use of smaller
> apertures.
> 
> C.H.Ling
> 
> "Dean C. Hansen" wrote:
> > 
> 
> >     I have a lot to learn about optics--and the
> ways of this 20mm macro
> > lens.  Anyone have any suggestions for using this
> guy?
> > Many thanks,
> > Dean
> 
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> List >
> < For questions,
> mailto:owner-olympus@xxxxxxxxxxxxxxx >
> < Web Page:
> http://Zuiko.sls.bc.ca/swright/olympuslist.html >
> 


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