OM System M.Zuiko 40-150mm f/4 PRO Lens It’s the world’s most compact, lightweight telephoto zoom lens among those with a fixed aperture and 300mm equivalent. This ultra-portable lens gives you world-class image quality plus all the imaging power to shoot landscapes, nature, birds and more. Think of how much more freedom you’ll have without being weighed down by big, bulky lenses. Plus, it’s fully weathersealed with an impressive IP53 rating so you can shoot without worry in harsh conditions. You can even take stunning macro shots. It might be compact and lightweight but you’ll find everything to take your images to exciting new places.