The LUMIX G 20mm / F1.7 ASPH., a pancake interchangeable lens, is based on the Micro Four Thirds System standard. It features a compactness and light weight despite its F1.7 brightness allowing a beautiful soft focus for photos to be even more impressive.
Currently £274.73 on Amazon
Price at Harrison Cameras is £225 + £3 postage.
This is a fantastic lens to go with any micro 4/3 cameras e.g. gf1, gf2, gh1, gh2 etc... and olympus models