Nikon tonight unveiled an anticipated trio of high-end compact cameras, starting with a direct challenger to the Canon G12. The Coolpix P7000 follows the same philosophy of a large, lower resolution 10-megapixel sensor more sensitive to low light; it's also the first camera with an EXPEED C2 image processor that promises better quality. Moving to the new CCD opens the camera up to a regular sensitivity range of ISO 100 to 6,400 as well as special low noise night mode that drops the resolution in return for cleaner images and a maximum ISO
