In any case the same lens does not perform worse on an increased resolution sensor, all other technologies being equal (like microlenses issues)."
Finally getting to the point, I would make these observations about the Sony 18-55mm and 55-210mm zooms which I have been shooting with for the last three days. No, they aren't the greatest zoom lenses ever made in terms of image quality, but neither are they the worst. Their great advantage is that they are VERY useful. They are well-made, fast and easy to use with excellent IS (Don't underestimate this as an aid to sharpness by the way) With the NEX-7 sensor they produce images capable of large - scale reproduction both for publication and for personal print use. The notion that they are somehow "sub-standard" or "incapable of showing what the NEX-7 sensor can do" is from my experience with the copies I have, totally untrue.