--- William Robb <[EMAIL PROTECTED]> wrote:
> > ----- Original Message ----- > From: "Brendan MacRae" > Subject: FA lenses on *istDL...focus issues? > > > > Someone bought my FA 28-105mm 3.5-4.5 on eBay and > is > > having issues with AF. Supposedly (according to > some > > posts on DP review) this is common? > > > > Focusing past 60mm and the AF goes all wonky. > > > > Is there a fix for this other than focusing > manually > > or using DA lenses only? > > If the AF is going wonky past a certain focal > length, lets look at what > else happens as we change the aperture on a variable > aperture zoom lens. > Just a wild guess, but I bet that in the light > levels your buyer is > shooting in, the AF doesn't work so well at > apertures smaller than f/4 > or so. > > William Robb Could be, but he says it was going to be a "walk around" lens so I'm assuming he is going to be mostly shooting outside during the day so he could be in the f11-16 range when testing it (depending on ISO setting). To complicate matters, he comparing its operation to his DA lenses which I've told him is really apples to oranges. Not to mention the fact that the focus system in the MZ-S is nothing like that in the *ist DL. In any event, it's unfortunate for him but not really my problem. I have my own equipment woes to "focus" on. -Brendan __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
