Excerpt: Canon's EF-S 18-55mm kit lenses have always been small, light and cheap and the latest versions have the very useful image stabilization feature. These lenses have been and continue to be a good value when purchased as a starter lens in a DSLR kit, but they have never been a strongly desired lens otherwise.
Excerpt: This is the latest incarnation of Canon's 18-55mm image stabilised kit lens for EF-S compatible EOS cameras sporting their new STM stepping motor technology, which promises to provide smooth, silent autofocus, especially well-suited for shooting video. Although most people who end up owning this lens will pick it up as part of a kit, bundled with one of Canon's entry-level SLRs, it can also be purchased for around £200.
Pros: Good sharpness throughout the zoom range, Lightweight, Fast focusing, Effective stabiliser, Close focusing
Cons: High CA levels, Plastic lens mount, A touch expensive when bought on its own
Canon EF-S 18-55mm f/3.5-5.6 STM IS - Review / Test Report
9 May 2013
Conclusion: Many users will probably think that photozone went gaga considering the resolution results of the Canon EF-S 18-55mm f/3.5-5.6 STM IS. Honestly, we'd prefer it to be worse so we wouldn't need to argue. :-) Anyway, keep in mind that this is a zoom lens with a very moderate 3x zoom ratio and a slow max. aperture range. Such lenses are relatively easy to design and the challenges are well understood- so this may partly explain the relatively high resolution results.