The currently best zoom lens

A perfect Always top lens - for realistic zoom level - roundly almost perfect, crisp optical properties. Fits comfortably in your hand, for I am very visually compelling combination of 18mm-WW to moderate telephoto. Great Bokeh for portraits!
Although the G-series lens will cost a few bucks, but is significantly more contrast, sharp crack and because of its Coatings offers a much dearer to me personally, natural color balance. I photograph landscapes, architecture and portraits, with fixed focal lengths, mostly by auto iris.
Both zoom ring and manual focus (as needed) to run so sick that it's a pleasure to deal with it.
I am really very pleased with this choice.