I probably will- my 5n's taken a ridiculous amount of film since I first got
it, and I couldn't flaw it or the Sigma 28-70 2.8 in terms of performance.
Never seen my workhorse ill- kinda worried..

Regards,
Ryan


----- Original Message ----- 
From: "Rob Brigham" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, September 03, 2004 10:46 PM
Subject: RE: my ist D AF problem


> Would be well worth testing on a film body too.  It might just be the AF
> system in the *istD which is often said to have such focussing
> innacuracies with fast lenses (like the FA 50 1.4 for example).  There
> might be nothing wrong with the lens either...
>
> > -----Original Message-----
> > From: Ryan Lee [mailto:[EMAIL PROTECTED]
> > Sent: 03 September 2004 13:45
> > To: [EMAIL PROTECTED]
> > Subject: Re: my ist D AF problem
> >
> >
> > lol! I forgot I had a spare ist D lying around the house. I
> > just did a quick test, and it appears that I don't have to
> > send my ist D back (damn! Because the ist D is still under
> > warranty while the lens isn't..). Anyway, I've noticed that
> > at 2.8, autofocusing on text doesn't emphasise the edges. I
> > assume the temporary workaround would be shooting at 5.6 and
> > smaller, but then that's just hiding the wrong focus in the
> > extra DOF. Anybody know how much sending in a Sigma lens for
> > a CLA costs (assuming it's for an adjustment of the AF, if
> > that's possible, what ranges am I looking at)?
> >
> > Cheers,
> > Ryan
> >
> >
> > ----- Original Message ----- 
> > From: "Alan Chan" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Friday, September 03, 2004 9:20 PM
> > Subject: RE: my ist D AF problem
> >
> >
> > > Just use the same lenses to test another *istD in the shop and see.
> > >
> > > Alan Chan
> > > http://www.pbase.com/wlachan
> > >
> > > >Upon taking a bunch of rather soft shots, I've just been
> > testing my
> > > >ist
> > D's
> > > >AF. It seems that with the Sigma EX 28-70 2.8 (which I've
> > not had any
> > > >AF problems with my 5n), even though the camera says something is
> > > >focus
> > (using
> > > >single point/ spot AF), the camera consistently misses the focus
> > > >(tested
> > on
> > > >text). Manual focusing yields the usual sharp focus I'm used to
> > > >getting. Batteries are full, btw.
> > > >
> > > >Does this mean I should return the body for a new one,
> > something is
> > > >wrong with my lens (I don't think this is the case..), or
> > something
> > > >else?
> > > >
> > > >Please advise.
> > > >
> > > >Thanks,
> > > >Ryan
> > >
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> >
>
>


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