Review on Canon EF-S 17-55mm f/2.8 IS USM Lens - Compatible with Canon DSLR Cameras (Lens Only) by Athit Nivongsa ᠌

Has pros: Aperture, stabilization, manual focus - with a mechanical washer and not through electronics as in cheaper lenses, fast autofocus Has some cons It is huge and very heavy, strong backlash of the retractable part, it does not seem to affect the quality of the photos, but for its price it looks dumb!