Four of my favourite light and small Micro Four Thirds lenses. All of these plus one of my Olympus OM-D camera bodies and accessories fit comfortably in to my thinkTank Turnstyle 10 bag making for a very compact and lightweight pack to carry around giving me full focal length coverage from, in full frame equivalent terms, 18 mm to 200 mm. Apologies for the slightly blurry images they were taken with an old phone camera but it gives a good indication of the compact size of these lenses.
Panasonic Lumix G 14 mm f/2.5 (weight: 55 g without the lens hood)
Olympus M.Zuiko 9-18 mm f/4-5.6 (weight 155 g: without the lens hood)
Panasonic Lumix G 12-60 mm f/3.5-5.6 (weight: 210 g: without the lens hood)
Panasonic Lumix G 35-100 mm f/3.5-5.6 (weight 135 g: without the lens hood)