I find this very compact zoom biggest I imagined was a good catch in hand .L'autofocus (depends partly on my Canon 40D housing) is fast, it fishing when we are too close to the subject, under 24 cm announced it rotates the lens that comes banging repeatedly on the stop: no top! But good in macro is usually done manually map; indoor lack of brightness here. With light it is easy to make the map. I realize that the minimum distance of focusing is less than 24 cm announced is more, I think there was a conversion error between inches and cm, because in fact the map Mini is not even half, about 10 cm. There is no lock the zoom ring to transport, but it is not overly annoying, it does not turn easily, have over time with use. It remains to be tested outside and see the results on the big écran.Tamron - Lens AF 10-24mm / 3.5-4.5 DI II LD Canon