Why Eiger Matte Box? Eiger Matte Box system resolves the frustration of using filters without a matte box. It incorporates optional filters (VND, Gradient, Mist, Steak, Straight ND) in one system. The adjustable carbon fiber top flag minimizes glare or flare for superior image quality. | Diverse integration: The Eiger Matte Box system is compatible with insert filters and magnetic or threaded filters. It also supports the use of the previous Freewell Magnetic Quick Swap System, threaded VND filters, as well as use Freewell Eiger filters, providing a wide range of compatibility to meet your diverse filter needs. | Effortless Disassembly: The sunshade hood is easily detachable with a quick-release mechanism activated by a button press. This convenient feature enables effortless accessory changes and scene adaptation for enhanced flexibility in your photography. | Future-proof: With Eiger Matte Box, you no longer need to worry about choosing the correct filter thread size. This versatile system is designed to be compatible with the lens up to 95mm with included adaptors from 67mm to 82mm, with an option to purchase an adaptor for 52mm, 55mm, 58mm, 62mm and 95mm separately. | In the box: Matte Box, adapter Cap, adapter Ring(67mm, 72mm, 77mm, and 82mm)