No, the comment wasn't that it doesn't focus to
infinity, but that when power zoom is engaged,
the camera doesn't automatically return the lens
to infinity position like it does on the
PZ-1/PZ-1p.
It focuses to infinity just fine on my MZ-S!
Joe
I just tried my PZ 28-105 on the *ist-D and it
was downright snappy in focusing at both ends of
the zoom range. I wonder if there is some sort
of problem with the AF coupling on the lens?
Someone else commented that the PZ 28-105 does
not focus to infinity on the Mz-S. My Mz-S is
off for repairs, but I don't recall ever having
that problem. I did note testing just now that
when I focus the 28-105 to a distant subject,
distance scale on the lens reads about halfway
between 5m and infinity. But a few test shots
with the *ist-D shows that this is indeed where
it's in focus. I was on my back roof focusing
on a telephone pole a block away , so I'd expect
that to be infinity - but maybe the scale is off.
- MCC
- - - - - - - - - - - - - - - - - - - -
Mark Cassino Photography
Kalamazoo, MI
www.markcassino.com
- - - - - - - - - - - - - - - - - - - -
----- Original Message ----- From: <[EMAIL PROTECTED]>
To: <pentax-discuss@pdml.net>
Sent: Tuesday, March 08, 2005 11:12 AM
Subject: Re: Power zoom lenses
All i know is the PZ 28-105 works on my PZ-1
with no problems however,no Power Zoom
with the
istD and it does not AF well at either end(full
28 and full 105)Its sporatic and just
started.Kind of a
humming noiise from the motor when trying to find focus.
Take it off slightly from the to ends and it will focus.
Dave
> Carlos Royo mused:
>
Joe Wilensky escribió:
> But are any of them power zoom lenses? I think most of the IF lenses
> replaced older power zoom designs.
The FA* 80-200 2.8 is both power zoom and IF. And I think the awesome
250-600 mm. is also both.
That is correct (although neither lens changes length when zooming).
