Dust Alert must work intermittently as is the case with the DA 55~300. I've used the Pentax gummy pen and bulb blower. As I see no spots on the images, I'm beginning to actually wonder if it's on the sensor.(?) Does the Dust Alert come alive only when it actually recognized that the sensor needs cleaning?
Jack --- On Sun, 12/12/10, paul stenquist <[email protected]> wrote: > From: paul stenquist <[email protected]> > Subject: Re: Dust Alert > To: "Pentax-Discuss Mail List" <[email protected]> > Date: Sunday, December 12, 2010, 6:10 PM > Dust alert doesn't work with some > lenses. Don't know why. > Sounds like your sensor needs cleaning. Try blowing it off > with an ear cleaning bulb. If that doesn't work, use the > Pentax gummy stick or some other heavy duty cleaning kit. > Don't ad lib. > Paul > On Dec 12, 2010, at 8:08 PM, Jack Davis wrote: > > > I performed the Dust Alert with the K20 and DA55~300. > I got a debris field similar to the one I'm sending each > time. I did the Dust Removal numerous times and all that > happens is the debris is re-distributed. > > I went to my DA*50~135 and sensor appeared clean. I > then tried another lens and found the Dust Alert grayed out > and has refused to wake up. > > I open the 55~300 aperture and peered through it, out > of frustration, but saw nothing floating around in there. > :( > > > > Any ideas? > > > > Jack > > > > http://photolightimages.com/aspupload/detail.asp?ID=556 > > > > > > > > > > -- > > 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. > -- 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.
