When the projector must sit far from the screen, the Optoma BX-CTA23 gives integrators the reach and control needed for demanding venues. Designed for the ZU1700, ZU1900, and ZU2200 Ultra Bright DuraCore laser projectors, this ultra long throw lens supports large-scale projection in entertainment spaces, live venues, and building projection applications where distance is part of the design. Its 4-7.2:1 throw ratio enables projection from over 150 m away and can produce images up to 1,000 inches wide, giving system designers room to work around architecture, audience zones, and rigging constraints. The 1.8x zoom adds installation flexibility, while full lens memory helps preserve setup settings for repeat events and recurring venue configurations. For projects where image size, throw distance, and repeatability all matter, the BX-CTA23 is built to handle the job with fewer compromises. It is the kind of lens chosen when the installation has to disappear and the image has to dominate the space.