> cwo 20995 wrote:
> >
> > Does anybody knows if the 85mm 2.8 Soft Focus works as
> > a "normal" lens (without the soft feature)?
> >
> > ...
>
> Yes.
> No.
>
> Claude, the soft focus lens is a very unusual (I mean special) one. It
> has only two elements in front of the diaphragm, in one group. The
> effect gets stronger as you open up from 5.6 (minimum aperture).
>
> At 5.6 the effect is already clearly visible, at 2.8 you see a really
> "dreamy" image.
>
> There's no way you could use it as a normal lens.
>
> Hope it helps, Flavio
Hi Flavio, unless I am completely of the scort, what you describe is to
old Pentax M 85/2.2 soft focus lens. If you look on Boz site, that fits on
your description as a simple 2 element 1 group lens. But there is also the
F and FA version which stop down until 32 and Pentax claims from some stop
(8.0 or so) it becomes sharp and would be usable pretty normal.
I just realised that Boz site sais both F and FA use stop down
metering until f/8.0 which contradicts what I wrote earlier. I am not
100% sure, that the info I gave earlier is correct, but would be
surprised if Boz's would. Then autofocusing would be impossible for
aperture settings below 5.6. The manual of my MZ-5n explicitly states
Autofocus problems with the F version and tells workarounds. The FA
is supposed to work as an AF lens with all aperture settings.
Someone can clarefy here?
-
This message is from the Pentax-Discuss Mail List. To unsubscribe,
go to http://www.pdml.net and follow the directions. Don't forget to
visit the Pentax Users' Gallery at http://pug.komkon.org .
