UV Filter: It is a general use, clear filter designed to absorb ultraviolet light and reduce the bluish cast of daylight. Aside from the reduction of unwanted blue casts, no additional coloration or contrast is created, and adjustments to exposure are not required while using this filter. | Ultra Slim: The UV filter is constructed from optical glass for clarity as well as color fidelity. Aluminum-alloy filter ring minimizes the potential for vignetting, while remaining durable and lightweight. 72mm front filter threads allow for use with other filters. | Multi-Coating: To prevent internal ghosting and reflections, the glass features 10 layers of multi-coating. These coatings also offer greater protection to a filter substrate and help it to stay clean for longer than with uncoated filters. | UV Protector Filter: This UV filter is also useful as a general protective filter to leave on lenses at all times. Such filters help to reduce dust and moisture from reaching your front lens element and provide additional protection in case of drops or situations where scratching could occur. | Notice: Please check your lens diameter before purchasing to choose the correct size. Your lens diameter is marked with a "Φ" symbol on lens.