DESC: The TM15 features a 16x optical zoom. You can zoom close to catch dynamic shots of distant objects. And because the zoom is optical, there's limited image degradation. Also, Panasonic's advanced O.I.S. helps prevent blurring - typically a big concern when shooting with a zoom. This combination of optical zoom and advanced O.I.S. gives you the ability to take fantastic zoom shots.Panasonic's advanced O.I.S. helps suppress the effects of hand-shake as you shoot, for both motion and still images. This system uses gyro sensors to detect even tiny amounts of hand-shake, then shifts a lens and adjusts the optical axis to compensate - all at an astounding 4,000 times per second. The O.I.S. corrective lens shifts and stabilizes the image the instant that the shutter button is pressed, to enable greater precision in stabilization.