Optoma BX-CTA27 Extreme Long throw Motorized Zoom Lens | BX-CAT27 Objektiv (7,20 -10,80)Extreme Long throw Motorized Zoom Lens Optoma's longest throw lens, the BX CTA27 Extreme long throw lens is ideal for distance installations and large venue entertainment requiring an extra long distance from projector to screen. This lens has a throw ratio of 7. 2 ~ 10. 8: 1 and can produce an image size from 50" up to 1000" Designed for use with Optoma ZU2200, ZU1900, and ZU1700 DuraCore laser projectors Features Full lens memory 1. 5x motorized