The same kind of fault happened to me with my D and three different samples of genuine smc Pentax-F 70-210 zoom lenses. >From 70 to about 135, everything works fine. Past 135 up to 210 you cannot make AF work properly, irrespectively of environment light, subject contrast, etc. It doesn't hunt, it just focuses much nearer than the subject is, while the AF confirmation LED lies telling everything's OK.
Of course, those F 70-210 autofocus well on my MZ-S and MZ-5 at any focal length. Of course, my D autofocuses well with any other lens I've tried since. AFAIK, the F 70-210 is the only lens having AF problems with my D (or my D only has AF problems with the F 70-210, if you prefer) so I just stopped fiddling with such a useless combo. Since for most of my work (night shots, concerts and the like) I truly don't need a slow maximum speed of F5.6, I ended up buying a Sigma 70-200 F2.8 instead: wonderful lens and perfect AF at any f-stop and any focal length :-) Dario ----- Original Message ----- From: "Digital Image Studio" <[EMAIL PROTECTED]> To: "Pentax-Discuss Mail List" <[email protected]> Sent: Sunday, August 27, 2006 4:30 AM Subject: Re: FA lenses on *istDL...focus issues? > On 27/08/06, Brendan MacRae <[EMAIL PROTECTED]> wrote: > >> My thoughts exactly. >> >> Anyway, I just wanted to check here to make the guy >> feel a little better. AF should work fine according to >> everything I've seen (including the *ist DL manual). > > I know a user who has had to send his *ist D (and lenses) back for > service as it refused to correctly focus with particular genuine > Pentax lenses (some LTD), so it definitely can happen. > > -- > Rob Studdert > HURSTVILLE AUSTRALIA > Tel +61-2-9554-4110 > UTC(GMT) +10 Hours > [EMAIL PROTECTED] > http://home.swiftdsl.com.au/~distudio//publications/ > Pentax user since 1986, PDMLer since 1998 > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
