----- 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 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
