Kaiser 6889 lens hood, a replacement for Canon EW-73 B for Canon EF-S 17-85 / 4.0-5.6 IS USM (Accessories)
did the Kaiser Lens Hood for my 18 - bought 135 IS, also fits this wonderfully. The only slight flaws is that it is relatively difficult during disassembly ... but have scho found the right technique and then everything works fine. I can only recomme
