1. Blocks non-image-forming light during backlight, side lighting, or flash photography to help prevent lens flare and fogging. 2. Reduces stray light entry when shooting in frontlit or sidelit conditions. 3. Helps prevent surrounding ambient light from interfering with the lens during bright or nighttime photography. 4. Provides protection against accidental lens damage, prevents fingerprints on the lens surface, and offers some shielding from wind, dust, rain, and snow. 5. Designed to be used with various filters; blocks stray side light, reduces glare and halos, and enhances image contrast, color, and saturation. Model: EW-78F Lens Hood Compatible Lens: For RF24-240mm F4-6.3 IS USM Lens Filter Thread Size: 72mm Installation: Bayonet mount, reversible design Reversible: Yes Color: Black Material: ABS Package Contents: 1 x EW-78F Lens Hood Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance: +/- 1-3 cm.