A&R Lens Hood Shade For Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens Replaces EW-73C. A&R lens hood is designed for Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens. Lens hoods are primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens.
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