On Dec 12, 2010, at 10:24 PM, Jack Davis wrote: > 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?
No. It works with dirty and clean sensors. I know it's not always selectable. I don't remember why. Check the manual. Paul > > 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. -- 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.
