Hi
I have two EOS 10D's. Despite keeping the the front of the cameras closed at all times except for the odd second here and there whilst changing lenses, the sensors get very dirty. I have just sent one of them, which is only a year old and was cleaned 4 months ago, to the Canon distributor in Madrid. They tell me it needs a new filter because the current one is 'encrusted' at a cost of 400 euros!
Does anyone else have this problem and/or know wheterh there is a safe way that I clean the sensors myself?
Thanks.
P
(The earth isn't flat...honest)
Does that mean its covered in so much hard stuff that it can't be cleaned off? I guess I don't understand what Canon is really trying to tell you by saying your 10D has an encrusted sensor. What is it encrusted with? If they just cleaned it 4 months ago, how could it possibly have gotten so "encrusted" that it has to be replaced?
Here,here, I do the same thing with no problems, I think we can all be a little pedantic when it comes to imager cleaning, take care and you will have no problem !! 
