Probably the best budget autofocus lens for Micro 4/3! The Xiaoyi costs around £60/$80 or sometimes even less. generally available on Ebay these are fairly easy to find. Its decently sharp at F1.8 and its image quality is generally on Par with the Olympus 45mm F1.8 which is around 3x the price. the build quality isn't the best with a plasticky feel & plastic lens mount. There is no manual focus option but it does focus as close as 25cm is macro mode although maximum aperture in this mode is F3.5. If you are on a really tight budget definitely worth a look!