Excerpt: I had acquired the lens with a knock-off hood. It was flimsy and I didn't like the way it fit. The original euipment hood fits like it should and goes on and off easily. It completes the feel of a quality lens system. Sure, it's more money, but there's more quality as well.
Excerpt: You can buy other brand hoods, or even online knockoffs, but if you buy Canon you will only buy once. OK, it might not outlast the lens, but you can be sure that it won't let you down. Worth every penny.