I should read what I write more often, yes you're right.  You can use Tv mode
or Program.

At 05:38 AM 2/19/04, you wrote:

Missing the aperture ring, mean missing the Av mode, no ? But can use the
Tv using the dial on the MZS...

I use meuch more Av than Tv and Manual than Programm...


Peter Alling �crit:
> They'll work in AV or Program mode, they lack aperture rings.
>
> At 10:22 PM 2/18/04, you wrote:
>
>
> > > Pentax has not used usm etc. for AF. A disadvantage of using
> > > it is that you disenfranchise all older lenses; Pentax's
> > > mechanical solution means that old and new lenses work on
> > > old and new cameras.
> > >
> >
> >This is something less and less real. I'm thinking the FAJ and de DA lenses
> >on my MZS
> >
> >
> > > The FA28-70/4 has a good reputation for quality and a
> > > reputation for mechanical build which is consistent with its
> > > low price. It is ok, not the greatest. All in all this lens
> > > is suburb value - available at KEH in EX+ for just over
> > > $100, available on eBay for $75-100 in very good condition.
> > > About the only lenses of this quality available readily for
> > > that price that I can think of offhand would be the FA, A,
> > > or M50/1.4, the M135/3.5, maybe the A70-210.
> > >
> > > Stan
> > >
> > > chibitul smecher wrote:
> > >
> > > > Hi, does Pentax use the ultrasound technology found in some Canon and
> > > > Nikon lenses? I have a ZX-5n and I see that it uses a shaft (cannot find
> > > > a better word) to achieve the auto-focus, IOW the motor is in the camera
> > > > and there is a mechanical coupling between body and lens. This is not
> > > > very quiet :(... I see there are a few other contact on the lens mount,
> > > > so I wonder if other more expensive lenses got the ultrasound auto-focus
> > > > motor. I only have a zoom 28-70 f/4 AL lens.
> > > >
> > > > what about lenses where the front element does NOT rotate? using a
> > > > polarizer filter with 28-70 f/4 is not fun. And BTW, while others seem
> > > > to like the optical quality of this lens, I see very few that actually
> > > > mention the poor mechanical build.
> > > >
> > > >
> > >
>
> I drink to make other people interesting.
> -- George Jean Nathan
>

I drink to make other people interesting.
-- George Jean Nathan





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