The Kenko ECO MC Protector provides a “term insurance policy” for your lenses. You need it to keep your precious lenses in good working condition. Filters offering various levels of protection are available, so choose the one that matches the specific purpose of the lens with which it’s used. These filters have multiple coats on both sides to achieve a filter transparency of approximately 98%. Despite their reasonable prices, MC filters use quality materials for the glass and filter frame so that reflection on the lens isn’t interfered with.