Hi, This is not an entirely new problem, tho' it's been a long while since it's come up on the list. There were a few of us that experienced similar problems with ZX-5n and FA28-70/4 and perhaps other lenses. I recall that one as I have that combination, and, at close focussing distances, the camera/lens combo will focus slightly in front of best visual focus. Everything is fine from about 1 meter-infinity, and, as I recall the problem was more pronounced (or easier to detect) at the longer focal lenght. Diopter adjustment was fine as also evidenced by the problem not being manifest at further distances. AF selecter was set to single point (I never use three point). I recall other's had the opposite problem, focusing worse toward infinity. I don't think anyone was able to come up with an explanation.
This was from about 4 years ago, back when Pentax hosted the list, so I doubt that there would be any archives on it. I may have some of the old thread on another computer, not readily accessible at this time. Thanks, William in Utah. ----- Original Message ----- From: "Dario Bonazza" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, June 18, 2004 10:53 AM Subject: Re: Tom, I'm wrong! (not completely though) > No, no! > I always and only used the spot AF (set on the central segment) for both the > MZ-S+FA 1.4/85 and the *ist D+F 70-210 tests. > > In any case, before you'll suppose both my MZ-S and *ist D work bad and > cannot switch to Spot AF, I tell you that I haven't had such a problem with > other lenses of the same focal length on the same cameras. > > Dario > > ----- Original Message ----- > From: "Jens Bladt" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, June 18, 2004 6:42 PM > Subject: RE: Tom, I'm wrong! (not completely though) > > > > This does not seem right to me. Never heard of a lens not focusing where > the > > AF system telss it to? > > I have, however, experienced similar problems, which I believe are caused > by > > the MZ-S choosing an alternative focusing point. This can be solved by > > setting the MZ-S to use just one focus point. Could this be the problem? I > > have posted a phptgraphs from this lens, where its obvious, that the AF > > system choose NOT to focus at the girls face: > > http://gallery46369.fotopic.net/p5254004.html > > > > The F 70-210 isn't the best lens in the world, afterall it is a zoom lens > > (I'd rather use a A* 2.8/200mm ED, if I had one). But it is sertainly not > a > > dog. German FotoMagazin tested it (at the time of BAS Pro, when their test > > were still credible) to be one of the best of it's kind - and gave it a > > "Super" grade. > > All the best > > Jens Bladt > > mailto:[EMAIL PROTECTED] > > http://hjem.get2net.dk/bladt > >
