This is the LUMIX G X VARIO PZ 14-42mm / F3.5-5.6 ASPH. / POWER O.I.S. Micro Four Thirds lens (product code H-PS14042E):
Being a m4/3 lens, the equivalent zoom range in 35mm terms is 28-84mm.
Sample Photos and Videos
Accessories and add-ons
The filter thread size on the 14-42 X is 37mm, which means you’ll want to be looking at purchasing 37mm filters.
Panasonic lenses — Main page.