ROLANPRO Waterproof Lens Cover for Sony FE 100-400mm f4.5-5.6 GM OSS Camouflage Lens Clothing Rain Cover Guns Case Lens Cover for Sony FE 100-400mm f4.5-5.6 GM OSS Not including lens, camera body and tripod. Sony FE 100-400mm f4.5-5.6 GM OSS consists of 7 parts. The guns cover is design and produced in the strict accordance with the lens function, will not affect the normal operation of the lens. The focus ring, support ring can be rotated independently, the control panel area can be opened the window, the baffle can reverse installation. In order to reduce the number of parts and the number of gaps, the manual focus ring gun cover was widened. After testing, there is no change on focus ring rotation damping, and the hand feel is good. There are 3 custom buttons when widened the covers, but the cover of the custom button is thinner and can be easily manipulated across the canopy while retaining a good feel. The “100, 135, 200, 300, 400” value marks on the zoom ring will not be blocked by the gun cover. After install the gun cover on the bracket ring, it still can be rotated.