Sounds like the older non-telemacro non-hsm version. I would skip it if I were you, not a very sharp lens and AF is slow and noisy. If you find the telemacro hsm version get it especially if it had been chipped to work with Canon digital cameras (old versions only work open wide with digital cameras, except the 1d, 1ds, D30 and D60, all of which are over 10 years old)