On Wed, Feb 9, 2011 at 9:20 AM, Kenneth Waller <[email protected]> wrote: > I've had 3 Pentax digital SLRS and sensor cleaning is a very seldom needed > thing with my cameras - I go out of my way to keep dirt out and I've shot in > freezing snow storms, pouring rain and high winds in the desert. > When changing lenses,I keep the camera body opening facing down and am as > quick as I can be in reattaching the lens.
Ken, Dust inevitably gets into the camera and onto the sensor, no matter what you do. You may never see it if you shoot near wide open with fast lenses all the time, but if you want to check whether you have dust on the sensor, point your camera at a white wall and make a couple of exposures at f/22. I check for dust (even with the FourThirds equipment and its SSWF cleaning business) every time I'm going out to shoot stuff that I'll be stopped way down on the tripod with a clear sky. First times I did it with the 10D and *ist DS, I was horrified how much dirt that I'd never seen before was on the sensor! Sticking with f/1.4 to f/2.8 lenses and shooting near wide open most of the time simply masked it from view. -- Godfrey godfreydigiorgi.posterous.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.
