On Wed, Jun 4, 2008 at 10:33 AM, P. J. Alling <[EMAIL PROTECTED]> wrote: > There's really no way of knowing when the offending lens groups were > assembled, especially if they were made ahead of time and QC didn't > catch them they could be salted throughout the production run.
They send boxes of them to Doug, he fiddles with a few, then sends them out. Dave > > Adam Maas wrote: >> Manufacturing defect, yes, early samples, no. I'm seeing reports of >> recent lenses with the same issue over on the flickr Pentax group I >> moderate. >> >> -Adam >> >> On Wed, Jun 4, 2008 at 6:15 AM, Paul Stenquist <[EMAIL PROTECTED]> wrote: >> >>> The uneven focus on some DA* 16-50 lenses is a manufacturing defect >>> that plagued some early samples of this lens. I don't know if it can >>> be fixed. You should have returned it to the store where you bought >>> it. Hopefully, Pentax will replace it. >>> Paul >>> >>> On Jun 4, 2008, at 12:13 AM, Mark Erickson wrote: >>> >>> >>>> I hate to be a buzzkill, but.... >>>> >>>> I sent an FA* 300mm F4.5 lens back to Colorado for repair a few >>>> years ago. >>>> It came back to me horrible mis-calibrated (blurry at all >>>> apertures), so I >>>> sent it back. The second time I got it back it was dialed in and very >>>> sharp. >>>> >>>> I sent my DA* 16-50 back this spring due to uneven sharpness across >>>> the >>>> frame. It came back worse than when I sent it. So it's back in >>>> Colorado >>>> again. I'm hoping it comes back in better condition. >>>> >>>> Maybe I'm a "second time's the charm" guy.... >>>> >>>> >>>> Jack wrote: >>>> >>>>> Nor I, Paul. >>>>> >>>>> Jack >>>>> >>>>> >>>>> >>>>>> Ken wrote: >>>>>> >>>>>> >>>>>>> Same here Paul. >>>>>>> >>>>>>> Paul wrote: >>>>>>> >>>>>>>> I've never had a bad service experience with Pentax >>>>>>>> Colorado. It seems they know what they're doing. >>>>>>>> Paul >>>>>>>> >>>> -- >>>> PDML Pentax-Discuss Mail List >>>> PDML@pdml.net >>>> 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 >>> PDML@pdml.net >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. >>> >>> >> >> >> >> > > > -- > Vote for Cthulhu. Why settle for a lesser evil... > -- Dr. Jerry Pournelle > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- Equine Photography www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ Ontario Canada -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
