Ultra-thin designed for Fujifilm Fuji X70 / X100 / X100S / X100T / X100F The adapter ring facilitates the attachment of the lens hood or a 49MM thread filter to the lens. In addition, the original FUJIFILM lens cap can be mount onto the lens hood, so you can use the original lens cap without removing the hood. NOTE: To use the lens hood, the user has to remove the ring on the top of the lens of Fujifilm X70 / X100 / X100S / X100T / X100F(as the last picture shows) NOTE: can't be used with B+W 49mm Clear UV, recommend Haoge 49mm Ultra Slim MC UV ( ASIN: B07D3SDV57).