A challenge by Matti Sulanto in this video, http://youtu.be/MgB8UWQqZHA ,to only use a single prime lens on your camera for a prolonged period of time sent me looking for images today and between drenching rains, a took a quick look at the progress of these liles with my favorite micro43 lens, the 20mm Panasonic f/1.7. It was my very first micro43 lens.