Pentax Imaging has developed the amphibious OptioWP digital camera with 5 megapixels and a 3x zoom, for use both on land and underwater. Every seam in the camera is protected with rubber sealant and an interlocking design to resist dust, pressure and moisture. The OptioWP can produce high-quality images up to three feet underwater without an additional underwater housing unit.

The camera features a 2-inch, low-reflection LCD, 10MB built-in memory, quick startup and fast nine-point autofocus. It also can take movies at 30 frames per second in JPEG format. The internal 3x optical zoom can focus as close as 0.36 inch without protruding from the camera body. A special watertight locking mechanism fully secures the camera's rechargeable lithium-ion battery and SD Memory Card slot.

The OptioWP measures 4 x 2 x 0.9 inches and weighs 4.2 ounces. The camera is priced at approximately $400.