I have a K100D, which does not have the feature that the K10D has of being able to shake off the dust on the sensor. Hope I'm not harming this thread by asking - I get the impression it's kind of run its course with respect to the K10D - but I'd be grateful for a little more info.
1. Where does this dust problem come from or how does it arise? Do all SLRs and digital SLRs have it? Does dust get on to the sensor when you change lenses, or in some other way?
2. Is there any way to prevent or minimize the problem? Would you eliminate the problem, for example, by NEVER changing lenses? How about changing lenses only in a classic "clean room"? Do photographers who smoke have worse problems than non-smokers? How about changing lenses in some sort of a "clean bag"?
3. Do I have to worry about this problem with my K100D?
Apropos my second question, in his Magic Lantern Guides book on the K100/110D, Joe Ferace says
You can minimize problems [with dust] by turning the camera off before changing lenses and keeping the lens or a body cap on the camera when you're not using it.
He recommends vacuuming your camera bag now and then to keep it clean. He also says that Pentax recommends that you contact a factory service center for professional cleaning. He gives instructions on how to clean the sensor, but only after a somewhat scary warning.
Looking for guidance or tips. Thanks,
Will