My 35-70 f3.5-4.5 also has best infinity focus at
slightly less than the infinity mark, and you have to
back off more at 35mm than at 70mm. I made marks with
white ink on the focus scale for best infinity focus
points.
--- clintonr@xxxxxxxxxxxxxxxx wrote:
> This is quite normal for this model -- that, and the
> zoom tends to slip when
> you point it downwards. The rollers wear out, but
> they are no longer
> available. We've experimented with adapting parts
> from another lens to correct
> this....
>
> Curtis P. Hedman wrote:
>
> > I have a new (to me) S Zuiko 100~200 f/5 zoom, and
> I would like to poll the
> > List experts on something I noticed about the
> lens: the helicoid focus
> > mount stop is a fair amount beyond the infinity
> mark on the lens barrel.
> > When using the lens, I find that the infinity (or
> at least long range)
> > focus point is about where the infinity mark is on
> the barrel - i.e. the
> > lens can focus 'beyond infinity' [or to quote Buzz
> Lightyear in "Toy
> > Story", "To Infintiy and Beyond"! Does anyone know
> if this is typical of
> > the 100~200? Or perhaps of the S Zuiko series? The
> lens I have is in
> > beautiful shape cosmetically, and takes very sharp
> pictures, so I don't see
> > this 'over focussing' as an issue.... more of a
> curiosity point. Any wise
> > words will be appreciated! Curt
> >
>
=====
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