Panasonic ET-C1W300 is a motorized zoom lens for Panasonic 1-Chip DLP fixed-installation projectors in the C1 Series. It delivers ultra-short-throw projection with a 1.25x optical zoom, powered peripheral focus, and powered lens shift (vertical ±50%, horizontal ±23%). Focal distance is 9.9–12.3 mm with an F-number of 1.94–2.28. Throw ratios vary by aspect: 0.550–0.690:1 (16:9/16:10) and 0.660–0.830:1 (4:3). Screen sizes 70–1000 inches.