
The motorized zoom lens allows to vary projection distance by adjusting the focal distance and thus compensating miscalculations during installation. The lens has a zoom ratio of 1.5:1 and a standard-throw ratio that fluctuates depending on the aspect ratio of the projector. ET-D75LE20 Features: Zoom Lens, Designed for 3-Chip DLP Projectors, Focal Length: 35.0 to 50.09 mm, Varies Projection Distance - By Adjusting the Focal Distance, Motorized Zoom, F 2.5 Aperture, Zoom Ratio: 1.5:1, Throw Ratio: - 1.7 - 2.4:1 For 16:10 Aspect Ratio - 1.8 - 2.6:1 For 4:3 Aspect Ratio - 1.8 - 2.7:1 For 16:9 Aspect Ratio, Quality Optics Maintains High-resolution Imagery, Durable Construction, Works With The Following Models: PT-DZ21K PT-DS20K PT-DW17K PT-DZ12000 PT-D12000 PT-DW100 PT-DZ13K PT-DS12K PT-DW11K PT-DZ10K PT-DZ8700 PT-DZ110X PT-DS8500 PT-DS100X PT-DW8300 PT-DW90X"
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