Panasonic ET-ELS20 Standard zoom lens Throw Ratio 1.7-2.8:1

F Value 1.7-2.3rnFocal Distance (f) 26.9 mm-45.4 mmrnThrow Ratio 1.7-2.8:1rnDimensions (W x H x D) 108 x 108 x 176 *1 mm (4-1/4 x 4-1/4 x 6-29/32 *1 inches)rnWeight Approx. 0.9 kg *2 (2.0 lbs *2)rnApplicable Projector [PT-EZ570 Series] PT-EZ570/EZ570L/EW630/EW630L/EX600/EX600L/EW530/EW530L/ EX500/EX500LrnApplicable Projector [PT-EZ580 Series] PT-EZ580/EZ580L/EW640/EW640L/EX610/EX610L/EW540/EW540L/ EX510/EX510LrnApplicable Projector [PT-EZ770Z Series] PT-EZ770Z/EZ770ZL/EW730Z/EW730ZL/EX800Z/EX800ZL