Compatible Brand: Canon EF-S 18-135mm f/3.5-5.6 IS, EF-S 18-135mm f/3.5-5.6 IS STM camera lens Model Number: EW 73B Blocks stray light from entering the lens No vignetting would show with the hood on No vignetting will be caused with the hood on Extra protection from accidental impact The hood allows filter and lens cap on:Yes Lens hoods are primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens. In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. It is compatible with Canon EF-S 18-135mm f/3.5-5.6 IS, Canon EF-S 18-135mm f/3.5-5.6 IS STM Lens. Note : This EW 73B lens hood is not compatible with Canon EF-S 18-135mm f3.5-5.6 IS USM Lens. Please confirm your lens model which can be seen infront of your lens before ordering this product. Brand No Brand SKU 101012871_NP-1021558730 Hood Shape Petal