content: It's nice to have the appropriate lens hood for what is a relatively expensive lens, unfortunately Canon take advantage of this desire and exploit their loyal customers with over priced bits of black plastic, this is one of those bits of black plastic that you will want but should never have to feel so ripped off when obtaining it. It fits very well,looks good, has a nice furry inner surface, but I suspect that it's shallow profile means that it will afford little if any benefit to the performance of the lens.