Where do I go or send my Canon lenses to be professionally cleaned? I can't find info on Canon's website! ?

Personally I wouldn't send them in the mail. I'd phone places and drive them to the closest place!|||Lenses are sealed units with TONS of elements in them. If you are noticing gray circles on your pictures your cmos sensor may need a cleaning. Its about $275 or you can buy the kit @ B%26amp;H for ~$25