Should I have my sensor cleaned? I've noticed some dust on my photos in the skies for a couple months now. Today, I just noticed 3 specks of dirt when looking through my view finder; solid black dots. I removed my lens and lightly blew air into the body using a baby nose mucus sucker thingy but nothing too rough. I didn't lockup my mirror of had the sensor exposed or anything. This did not help. I can still see these specks. I know they are not on my lens because when I change lenses, the speck are still viewable through my viewfinder. I just purchased a sensor cleaning kit. I know and will be super extremely careful when cleaning my sensor. I just wish I knew, if these specks are really on my sensor or somewhere else. I've cleaning my view finder thuroughly on the outside. When the camera is off, I can still see these dust specks through my view finder. Thanks for all help and suggestions.