I bought one for one of my lenses for £3 (4.88$) because a so called Canon compatable one didn't fit. The hood was not much different in shape from the genuine one and its was fine, But I would be careful on wide angle lenses where the hoods are usually cut to shape to prevent vignetting. Consider the EFS 10-22mm wont even stand a second screw on filter without chopping off the corners. Canon would have you believe that each lens needs its specific hood to give optimum results and they're probably right. So go cheap but see how much it resembles the OEM version.