The Panasonic ET-D3QW200 is a 3-chip DLP 4K short-throw zoom lens designed for the PT-RQ50K projector. It provides a 17.5–20.7 mm focal-length range and an F-number of 2.5, with throw ratios varying by image aspect ratio. The lens uses a stepping motor for zoom and focus control, includes EEPROM lens memory and automatic lens identification, and supports peripheral focus adjustment. Its supported screen size is 100–1500 inches.