Despite a 3x zoom probably being the best for keeping photo quality intact, it looks like a 5x optical zoom will be supplanting it as the point-and-shoot norm. Nikon's doing its part to help that along with the 12-megapixel Coolpix S640 and S570.
Both cameras measure 0.8 inch thick and feature a 5x f2.7-6.6 28-140mm-equivalent lens on front and a 2.7-inch LCD on back (though the S640 has an "antifouling and water-repellent layer"). Where the S640 pulls away from the S570 is in performance.
Nikon's claiming a start-up time of 0.7 … Read more