Designed for Perfect Lens Function: ROLANPRO Waterproof Lens Cover for Canon RF 100-500mm F/4.5-7.1 L IS USM guns clothing is meticulously designed to ensure it doesn't affect your lens's manual focus and auto focus capabilities. | Environmentally Friendly and Odor-Free Materials: Crafted with environmentally friendly materials, our lens cover is free from any unpleasant smells, allowing you to focus on your photography without distractions. | Independent Focus and Zoom Control: With the ROLANPRO lens cover installed, you can effortlessly turn the focus ring and maintain the zoom ring rotation damping, providing you with full control over your lens's functions. The control switch window further enhances usability. | Durable Exterior, Gentle Interior: The exterior of the lens cover features a firm and wear-resistant polyester oxford fabric, ensuring protection against scratches and impacts. On the inside, the soft black short velvet material safeguards your lens from any potential damage. | Secure and Versatile Installation: The petal-shaped hood is securely fixed through a back-and-forth envelope design, offering stability and preventing any loose fittings. The ROLANPRO lens cover can be easily installed in various positions, and the switch position is conveniently secured with magic tape.