A visual comparision of the field of view of four popular Micro Four Thirds lenses:
9-18mm Olympus at 9mm
20mm Panasonic
45mm Panasonic/Leica
45-200mm Panasonic at 200mm
Four still images taken from a fixed-position, tripod-mounted Panasonic GH1 in RAW converted in ACR to jpeg, all at f/8. The Panasonic 14-45mm lens is not included since it overlaps the 20mm and 45mm lenses. The zoom motion in the video is done entirely by software video editing of still images.