Pentax Optio S5z, S55, and S45 announced

Imaging-Resource have details of the new Pentax Optio S5z, an ultra compact 5 megapixel digital camera with a 2.5" screen, the new Pentax Optio S55, a compact 5 megapixel digital camera with a 2.5" screen, and the new Pentax Optio S45, a compact 4 megapixel digital camera with a 2.5" screen. All digital cameras feature a 3x smc Pentax zoom lens equivalent to 36.5 - 107mm on a 35mm camera. The S55, and S45 both use AA batteries.