With the M.Zuiko 12-40 f2.8 PRO and the MC-14 converter, we have 24-420mm equivalent in a really small package. Paired with the Olympus E-M1 is a top quality equipment.
Weatherproof, all metal, manual focus clutch, f2.8 constant, fast and acurate focus, very interesting lens hood, image quality, very good zoom range; In general, optional MC-14 teleconverter, top quality Olympus lens and corrrect price for the quality
A little heavy (800g) and big (f2.8