Don't know about this, but it seems a bit strange. From memory, the extension
available on the 50/2 is roughly the same as the 50/3.5, and since both go to
1:2, this would imply that the 50/3.5 also gets shorter in f. I haven't heard
that this is the case. I Could be wrong, or just plain ignorant, but something
seems odd! My samples are too deep in storage to get out and check. Count that
as my entry for "lenses that never leave home (but are not for sale"
Julian
> from: "C.H.Ling" <chling@xxxxxxxxxxxxx>
> date: Mon, 30 Sep 2002 15:34:51
> to: olympus@xxxxxxxxxxxxxxx
> subject: Re: [OM] shift lenses; plastic lenses; bellows factor
>
> Depends on what is "very minor", if my memory serves it goes to around 40mm
> at 1:2. But I do agree it is not a major issue, as 50mm is already too close
> to the object at 1:2.
>
> C.H.Ling
>
> ----- Original Message -----
> From: "Julian Davies"
>
>
> > >>I heard the Zuiko 50/2 do get shorter in focal length at close focus.
> >
> > >>C.H.Ling
> >
> >
> > The floating elements in those lenses that have them will most likely
> > produce a *very* minor change in focal length, even though they are there
> to
> > alter field flatness. Not a major issue, and definitely not "the focal
> > length gets longer as you focus closer"
> >
> > Julian
> >
>
>
>
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