Panasonic ET-D3QT500 is a 3-Chip DLP zoom lens designed for the PT-RQ50K projector. It provides a 61.4-105.2 mm focal range, an F-number of 2.5, and motorized zoom and focus via a stepping motor. The lens includes EEPROM-based memory and Auto Lens ID, a peripheral focus adjustment, and a home position for alignment. Dimensions are 198 mm x 203 mm x 420 mm; weight 9.6 kg.