Dear Nikon-digestors, Now that my F90X is more than a year old and has seen a fair bit of travelling and use, the inside is noticeably dusty. If I use a hair brush or compressed air, won't this cause some dust to be moved elsewhere in the camera body perhaps to where it can't be seen ? Would it not be better to use a small vacuum line attached attached to a hair brush ? Am I being overcautious ? How do you clean your cameras ? Regards Gwyn