Vibration reduction (camera and lens) does an excellent job tracking moving objects

Have used it at a dog show to take great photos, movement and across the ring shots, and taken some good ones at performance events, just have to work out the focusing with a fast moving object, I just know that this lens will not last long for that reason.

if you are trying to capture a fast-moving object, I DO recommend that you already have the focus in the approximate focus range, and then the lens will focus in about a 1/10th of a second).

If you want lots of zoom, plan to use it outside, and don't plan on photographing fast moving objects, this can work out for you.

It is not in the super b lenses