Let\'s get a couple of things out of the way up front, this is a large and heavy peice of kit, which is what you\'d expect from what the manufacturer describes as a \'Professional series\' lens. I\'m a wildlife photography, so more often than not I...

A superb lens. Outstandingly sharp, even wide open. SSM autofocus works faultlessly and silently. Excellent ergonomics with zooming ring at the front end (helps steady the lens). Anti shake performance on the A900 is excellent. However, the lens is...