Digitalcameraworld tested the Olympus 17mm f/1.8 lens and concluded:
Available in black or silver, the Olympus M.Zuiko 17mm f/1.8 is barely bigger than a pancake lens. Thanks to the 2x crop factor of Micro Four Thirds cameras, it has an entirely natural, slightly wide viewing perspective, similar to a 35mm lens on a full-frame camera. Focusing is elegant both in auto and manual focus modes and it’s super lightweight despite featuring a high-quality metal build. All in all, it’s a great lens for walkabout shooting and for candid street photography.