The autofocus adjustment will only alter the relationship of the lens to the focal plane. In other words, you can't choose to adjust one end of the focal length range and not the other. I don't own that lens, so I can't tell you if it's a problem on my camera, but my DA 16-45 and DA 50-200 seem to focus just fine. I will, however, try to duplicate what you describe here later today. I'm not sure I've attempted a shot at infinity. Paul
-------------- Original message ---------------------- From: jtainter <[EMAIL PROTECTED]> > When I mount the DA* 16-50 F2.8 on the K20D and focus on something far away, > the > autofocus will move the focus point to just short of the 2 m. mark. It won't > focus to the infinity mark. If I manually focus to infinity, distant parts of > a > scene noticeably sharpen up. If I zoom to 50 mm, the lens autofocuses to > infinity just fine. > > The lens works just fine on my K10D. > > Does anyone know if/how the K20D's autofocus adjust works for zoom lenses > that > focus correctly at one end of the zoom range, but not at the other end? > > I suspect that I have a defective K20D, and that I have to send it to Pentax. > > Thanks, > > Joe > > > > -- > 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. -- 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.

