>>3304041The 'article' is from The Manual of Photography, 10th edition. Defacto text book on photography.
Point is that you are mistaken for thinking resolution and sharpness are one thing.
>>3304039It's kit, if you get it in kit for a good price, go for it, you can always sell it. If not rather go for primes. Buying it extra is completely pointless. It's not sharp, crap bokeh and tricky to work with. You practically need to memorise f numbers if you want to get at least a bit of sharpness out of it. And it's quite slow, especially at larger focal ranges. On other hand, it's fantastically small. 14-42mm pancake... Fantastic for snapshitting crap you'll maybe look once or twice after you take it.