The hybrid IS system works best at long ranges, delivering all four stops of stabilisation Canon claims, though it ironically — given we’re talking about a macro lens here — falls short at close-ups. But more than that, “this is one of the very finest lenses we’ve seen — optically it’s superb, and operationally it works very well too, with fast and positive autofocus, and one of the most effective image-stabilisation systems currently available.” In other words, it kills the current non-L F2.8 100mm Macro.
It’ll be interesting to see this new system migrate over to other non-macro lenses. Check the full review: [DP Review]