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 > > > > _________________________________________________________________ > > Take advantage of powerful junk e-mail filters built on patented > Microsoft(r) > > SmartScreen Technology. > > > http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&; > DI=1034&SU=http://hotmail.com/enca&HL=Market_MSNIS_Taglines > > Start enjoying all the benefits of MSN(r) Premium right now and get > > the first two months FREE*. > > > > > > >
