Size: Canon EW-73C EW-73C Lens Hood for Canon EF-S 10-18mm F/ 4.5 - 5.6 IS STM LENSOur replacement lens hoods are made from lightweight durable plastic, and carefully manufactured to ensure a snug and proper fit. Its tulip shape design perfectly matches the lenss specific viewing angle preventing lens flare by blocking unwanted light. The lens hood also serves to protect your lens from accidental bumps. Installation is fast and easy, and can be reversed for storage. Features- Designed to accommodate the exact angle of view of the Canon EF-S 10-18mm F/ 4.5 - 5.6 lens. - Minimizes flare and ghosting by blocking out stray light. - Shields the front of your lens from extraneous light, Improving overall image contrast and color saturation. - Protects your lens from accidental impact. - The bayonet mount is designed to also work in the reversed position, allowing the hood to be placed backwards over the lens for a more compact storage solution. Compatibility- The Replacement EW-73C Lens Hood is dedicated for, and compatible with the Canon EF-S 10-18mm f/ 4.5 - 5.6 IS STM lens.