【WHAT THE LIGHT POLLUTION FILTER DOES】: The light pollution reduction filter can eliminate the influence of light pollution for you, easily get pure and rich picture effects, greatly reduce the workload of the later stage, and it is your right assistant for shooting night scenes. | 【TEMPERED&SEALED DESIGN】: The Kase clip-in LP filter is tempered, making the camera filter more wear-resistant and durable. The size of the built-in filter adopts a fully sealed design to prevent dust from entering the camera's photosensitive element. It avoids light leakage during long exposures. | 【PROTECT THE PHOTOSENSITIVE ELEMENT】: Please don't worry when you use it. Because the sony clip-in filter has no damage to the using and working of the camera, lens, photosensitive element, and adapter. Furthermore, It also plays a role in protecting photosensitive element and acting as a CMOS protective mirror. | 【HIGH QUALITY OPTICAL GLASS AND COATINGS】: The surface of the Kase LP filter that is made of high-quality high-definition imaging B270 optical glass has a warter-proof and oil-proof coating, which easily cleans the stains on lenses, and withstand hard shooting conditions. | 【NO WORRIES AFTER SALE】: In order to provide you with quality products, all of the Kase clip-in sony filters are produced under a precise and strict system. If you have any problem with the product, you are welcome to contact us at any time, our professional team will try their best to solve it within 24 hours. | 【FITS ALL SONY ALPHA MIRRORLESS CAMERAS】: The Kase clip in filter fits all sony alpha mirrorless cameras including: A9 II, A9, A7R IV, A7R III, A7R II, A7R, A7S II, A7S, A7 III, A7 II, A7. | REDUCE THE BURDEN OF SHOOTING EQUIPMENT--The Kase clip-in filter will not be limited by the caliber of various style lenses, which can meet the use of all lenses (wide-angle/fish eyes/macro/medium telephoto lens). There is no need to be equipped with a filter for each lens alone, saving costs while reducing the burden on shooting equipment.