I just got a new Zoom lens for my Olympus E-PL1 (micro four thirds format camera). its the Panasonic 45-200 f/4.0-5.6. The first thing I did was take a couple of shots of the moon. The first shot is the maximum magnification for the kit lens that came with the camera (a 14-45 mm lens). The second shot is maximum magnification from the new Panasonic zoom. The third image is the second shot cropped down.
I'm already pleased with this lens. I recommend it for any Micro four thirds camera owners.