Do you not shoot stopped down past f/5.6? Do you not shoot scenes with even tones like skies or blank walls?
On Sun, Nov 4, 2012 at 11:51 AM, J.C. O'Connell <[email protected]> wrote: > My *istDS sensor has never needed a cleaning. Is something wrong? > (approx 18K shutter operations). > > ----------------- > J.C.O'Connell > [email protected] > ----------------- > > > -- > 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. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.com/ -- 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.

