Introduction Besides the small size and inherent portability of the MFT format cameras, both Panasonic and Olympus were quick to capitalize on the attraction of equally small high-quality primes. Panasonic even trumped Olympus (one of the most respected lens makers in Japan) early on and introduced a small pancake-type ‘normal’ lens with fast focusing, a large maximum aperture and very high image quality. That lens was the Lumix G 20mm f1.7 ASPH, and although only announced late 2009, Panasonic has already introduced its successor, the $428 Lumix G 20mm f1.7 II ASPH.While the new lens has