Nice and compact, very light and allows you to put this, attached to an Olympus E-M10 or E-M10 II, in your jacket pocket. All the lens has on the outside is the zoom ring, and that is it.
Olympus 14-42 f3.5-5.6 EZ (28 - 84mm in 35mm terms)
Size: 23mm x 61mm
Aperture: f3.5 - f22