It's not the only one available. Just turn the ring toward infinity
and stop turning when the focus stops being adjusted. I find that I am
able to both hear and feel the focus changing, so it's quite easy to
tell when to stop.
Robert Swier
Toronto
On 7/18/06, Bernard Frangoulis <lists@xxxxxxxxx> wrote:
> >Can't you simply spin the fly by wire focusing ring to the "infinity"
> >end of its travel? I just tried that with my A1 and it works fine. The
> >ring keeps turning but the distance reading on the screen stays at
> >ininity. Perhaps you don't have a focus distance readout anywhere but
> >you can probably experiment and discover that, for example, if you turn
> >the ring at least one full turn you're at infinity.
> >
>
> Yes, you are right. I tried this on the 14-54mm, which has distance marks. I
> can set the focus ring to infinity, and keep turning it, but focus does not
> change any further, i.e. it does not go past the infinity mark, and it does
> not visibly change any more in the viewfinder.
>
> I also verified that if I set the focus to, say, 2m, then switch the camera
> off, focus is set to the infinity mark.
>
> Of course, on kit lenses such as the 40-150mm, which have no distance marks,
> this "switch off" method may well be the only one available.
>
> Bernard
>
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