Rosco Lens Cleaner has been the choice of professional cameramen and cinematographers for over 50 years. Its unique formulation is especially designed for cleaning glass lenses, mirrors, dichroic filters, and other fine quality glass optics. It is easy-to-use and fast drying. It quickly removes dirt, residue, smudges and fingerprints. Free of ammonia, detergents and glycerin, it leaves no streaks or residue.