I am having problems with dust and hair looking bits being visible in both the viewfinder of my *istD and one of my Z-20's. I have blown them out with compressed air, but to with no avail. I am not sure if it is on the mirror or the pentaprism - any suggestions? I know that it doesn't affect the image that comes through the lens, but it is a pain in the butt to look at when I am shooting!
tia, tan.
