I'm looking for an original or bayonet lens hood to fit a 50-150mm f/2.8 EX DC APO OS HSM lens. Edit I have found what i needed, I got the 85mm ƒ1.4 EX lens hood, i was actually after a shorter one than the standard 50-150mm and thought i would have had to reduce an original one but the 85mm is perfect for what i need.