Zeiss Lens Cleaner Spray 490133 is an ammonia-free liquid cleaner that will keep your optics clean. The Lens Cleaner Spray from Zeiss will keep lens surfaces clean from fingerprints, smudges, and dirt. The Zeiss Lens Cleaner Spray is ideal for any brand of Spotting Scopes, Binoculars, Riflescopes, Telescopes, etc. The Zeiss Lens Spray has a special formula that will not damage optics with multi-layer coatings. To effectively clean a lens, dampen a soft cloth with the Zeiss Lens Cleaner 490133, then use the cloth to wipe the lens. Do not spray directly onto a lens as the liquid can run into the spaces between the lenses.