Great lens. If you need one all-rounder, this is it! 12@24 mm is great for wide end and 60@120 gives you a bit more edge compared to other basic-zooms. If you are running on tight budget, you should consider 14-54 f2.8-3.5 if the extra millimeters aren't your thing.
Great focal length IQ and contrast/color handling is well balanced with the focal length, but compared to 50-200, it feels a bit lame; Amazing all-rounder Weather sealing Well balanced with E-3 and E-5 Works almost as a macro lens, focuses almost to the front lens in 60mm Fast focusing Haven't...
A bit dark in the tele end A bit expensive Would need a bit more contrast/color capabilities compared to 50-200