On Sep 17, 2008, at 14:22 , Scott Loveless <[EMAIL PROTECTED]> wrote:
> Joseph McAllister wrote: >> In June, I sent my K10 D and an old FA 28-105 mm lens in for >> repair. What I got back was a K10 D with the firmware updated to >> 1.30 and focus that was much better, though still needing to be >> auto-focused twice to get a sharp photo, and still poor predictive >> AF. And no eyecup replacement, just the plastic base of it still >> in place. >> And i got back a lens that had been repaired so it worked fine in >> AF except at the extreme of 28 mm, where it still cinched >> slightly. And it focused at infinity at all focal lengths. And no >> charge at all. >> Now, I have to send my K100 in before it's extended warranty is up >> next month. I don't like it's focus abilities either. But I guess >> I'd better send in a couple of my lenses as well, so some matching >> can be done. I'd like to send in my K20 as well, as it's AF is >> abysmal, but they might just tell me I can use special functions >> and to do the calibration myself! And I would be without two >> camera bodies and my best lenses for 3 to 6 weeks. >> What to do? > > Switch to Canon? ;-) Seriously, though, there seem to be a bunch of > focus issues lately. Do the other makes have these problems, or is > it just us? Not just us. I believe Canon users started the whine. It seems that the bottom line from the manufacturers and pundits is that the average users now have the ability to look very closely at their digital images, and bitch, whereas before they only saw 4 x 6 prints, and everything was fine. The way AF works is dictated by a compromise between getting close with a single or double pass by the "best" focus and back x amount, or wearing out the AF lens mechanism and draining your battery very quickly while the camera "hunts" for the perfect focus. The internet is full of sites that complain about it, have ways to test for it, and firmware hacks to correct it. I believe that is why Pentax (and I assume others) now allow the user to "correct" the AF bias for individual lenses in the K20D. And why it is recommended to shoot stopped down more so your subject stands a chance at being in the field of focus. Oh, and only use ƒ 2.8 or faster glass! Joseph McAllister Pentaxian -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
