Prevent your lenses from fogging up with this Anti-Fog Defender Lens Cleaning Kit from optics manufacturer, ZEISS. Clean your camera lenses, fine optics, and even your eyeglasses with this kit that includes 0.5 ounces of fog defender cleaning spray and a fog defender microfiber cloth. It helps keep your lenses fog-free for up to 72 hours. This kit provides an easy and gentle cleaning process that does not damage the lens coating.