JJC ALC-X100 Auto Lens Cap is specially designed for Fujifilm X70, X100, X100S, X100T, X100F cameras. It can be regarded as a auto lens cap as well as a lens hood. Just slide the button OPEN on the cap, and then the 3 leaves will automatically open. So you do not need to remove the lens cap when shooting. At this moment, the 3 leaves will act as a lens hood to shade the lens from stray light and improve your image quality. No vignetting will be caused with this lens cap on. Press the 3 leaves back to the original place from 1~2~3, according to the numbers marked inside each leaves. At this time, it acts as a lens cap and can help you better protect your lens, making it away from dust, moisture and scratches like other lens caps. With this auto lens cap, you will never worry about misplacing or losing your lens cap any more.