That’s another rarely used, but tremendously useful lens when I want to go light: the small, collapsible Panasonic 12-35/3.5-5.6. Also plastic, also of quite sufficient quality, this time with unbeatable 70 g. Add the Olympus 9-18, and you have a set of three lenses covering 18 to 300 mm eq, stabilized (because of IBIS) and with automatic focus, ultralight and tiny. Add a PEN-F and a light bag and still be below 1 kg 😃