The lens is light as a feather, but still has a metal bayonet seems, high-quality workmanship and zooms, or focused inward, ie without changing the length. A truly worthwhile addition to 12-42mm zoom. Especially the concept of a small mirrorless system camera is not made with a thick chunk as the 100-300 absurdity. The GX7 remains with the 45-175 is relatively small, light and handy.
But my very positive experience with the lens at the GX7 I could not be applied to the G5. Without really understanding why, succeed on the GX7 (additionally a built-IS) photos using the zoom, while a lot of shaky Committee created at the G5. Actually should indeed in both cameras of the IS lens have the final say.
