By pairing the HC-V785K Full HD Camcorder from Panasonic with your smartphone, you can record two camera angles at once, the main image from the HC-V785K's sensor in Full HD and a secondary picture-in-picture image from your phone's camera. But the HC-V785K works by itself, too. It features a 20x optical zoom lens with a 29.5 to 612mm equivalent focal length, giving you a wide angle when zoomed out and a substantial amount of telephoto when zoomed in, with the ability to record slow motion in Full HD at up to 240 fps. Through their lens design partnership with Leica, Panasonic incorporates a Leica Dicomar 20x optical zoom lens with four separate optical groups and a maximum aperture of f/1.8.