Panasonic ET-ELW30 Zoom Lens ( 4.02-7.20:1) Panasonic ET-ELW30 zoom lens is designed for use with Panasonic’s applicable Projector(PT-EZ590 Series). It supports WUXGA resolution and a throw ratio of 0.96-1.21:1 . The lens makes it possible to vary the projection distance by changing the focal distance.
