Amazon.com : Panasonic H-HS043-S Single Focus Medium Telephoto Lens for Micro Four Thirds Lumix G 42.5mm / F1.7 ASPH. / Power O.I.S. Silver : Electronics
Panasonic Lumix G 42.5mm f1.7 review | Cameralabs
Panasonic LUMIX G 42.5mm f/1.7 ASPH. Review | ePHOTOzine