9 out of 10 points and recommendedincredibly sharp for a zoom, fast AF, f2.8, optical qualityheavy
I normally shoot with prime lenses so I was incredibly surprised when I saw how sharp this lens is. It is a bit heavy and 24mm isn't very wide on a 20D or other similar 1.6 crop cameras, but nevertheless the pros far outweigh the cons with this lens. The optical quality of this lens is excellent, the AF is fast, and a maximum aperture of 2.8 is great for anything low light (or if you just want limited depth of field and lots of nice bokeh.)reviewed December 17th, 2005
One of the things you need to get used to is that this lens extends and zooms out to 24mm (rather than zooming out to 70mm.) While I don't list this as a con, it does take a little getting used to.