On 2005-01-06, Lionel wrote:
Kibo informs me that (Lars Ritterhoff) stated that:

Thank you. But tutorials ar only part of the answer I am looking for: I
am rather interested in how much of a problem dust on sensors is. E.g.
how often do you have to clean it?

It's totally dependant on how often you change lenses, how careful you
are about it, & how dusty an environment you do it in. I've only cleaned
my 10D sensor once, so far (about a year), but it's picked up a few
small specks since then. Still, I'll probably need to clean it again
before the next time I do any outdoor shooting. (Dust tends to be most
visible in blue sky.)

I'm told by an acquaintance who claims lots of use of a 10D, including
outdoor lens changes, that the single biggest preventative factor is
turning off the camera before removing the lens. He says the second is
always holding the camera with the opening down (back up) while changing
lenses.

He says that sensor dust can be a problem for those with sloppy lens
changing habits. Maybe that means he doesn't have sensor dust problems,
I don't know, didn't ask.

Any comments about this?

Will D.