Summary: The NEX-5 is a dramatic and original approach to camera design, offering some of the best image quality its class in a tiny, sleek body. It's not perfect as a camera to just point-and-shoot but in the hands of someone willing to take a little control is capable of superb results.
Pros: Small, innovative designs that are still comfortable to hold, High resolution sensor with excellent High ISO performance (in PASM modes), Good JPEG output quality, Great build quality (particularly NEX-5), Metal barrelled lenses feel impressive compared to peers, Tiltable high-resolution screen, Point-and-shoot interface that provides optional control of aperture, Interesting extra features such as in-camera HDR and sweep panorama, Good, clear live view magnification ...
Cons: High ISO capability (a major advantage of its large sensor) unavailable in iAuto mode, Constant overexposure of images wastes highlight capabilities (and no exposure compensation to correct it in iAuto mode), Consumes battery quickly if you use the screen a lot between shots, Poor shot-to-shot times (if you want to see a post-shot review image), 'Bkground Defocus' feature can encourage the use of the wrong settings, Screw-on flash awkward to attach, Screen can be diff...
Sony E 18-55mm f/3.5-5.6 OSS (Sony NEX) - Review / Lens Test Report
12 September 2010
Conclusion: The Sony E 18-55mm f/3.5-5.6 OSS is a decent "kit" zoom lens but it is, of course, not flawless. The image center is very sharp whereas the border/corner region is softer although still acceptable. A weakness is the high amount of lateral CAs at 18mm and 35mm which decreases the subjective quality perception quite a bit if you don't care about it during post-processing.