Panasonic ET-EMW400 is a motorized zoom lens designed for Panasonic PT-MZ series 3LCD projectors. It offers an F-number of 1.84–2.24 and a focal range of 15.30–21.10 mm. Throw ratios vary by image format: 0.690–0.950:1 for 16:9 and 16:10, and 0.830–1.15:1 for 4:3. Peripheral focus adjustment is supported and lens calibration is required after attachment. Dimensions: 179 × 175 × 284 mm; weight 5.05 kg. Includes front and rear lens covers.