This is a composite panorama shot with the camera mounted on a Gigapan robotic platform. It's composed of 128 separate shots and the final file was 549 megapixels.

GigaPan Stitcher version 0.4.3865 (Macintosh)
Panorama size: 549 megapixels (38363 x 14318 pixels)
Input images: 128 (16 columns by 8 rows)
Field of view: 122.6 degrees wide by 45.8 degrees high (top=38.8, bottom=-7.0)
Settings:
All default settings
Original image properties:
Camera make: Panasonic
Camera model: DMC-FZ50
Image size: 3648x2736 (10.0 megapixels)
Capture time: 2009-06-02 17:12:18 - 2009-06-02 17:22:58
Aperture: f/11
Exposure time: 0.0166667
ISO: 100
Focal length (35mm equiv.): 167.0 mm
Digital zoom: off
White balance: Automatic
Exposure mode: Manual
Horizontal overlap: 37.6 to 49.6 percent
Vertical overlap: 38.6 to 48.7 percent
Computer stats: 2048 MB RAM, 2 CPUs
Total time 1:43:24 (0:48 per picture)
Alignment: 7:25, Projection: 8:49, Blending: 1:27:09