Bring the screen closer without moving the projector. The Optoma BX-CTA17 short throw lens is built for installations that need a large image from a compact throw distance, with a 0.65-0.75:1 throw ratio and 1.15x motorized zoom for precise setup. It is designed for Optoma ZU1300, ZU1100, ZU1050, ZU860, ZU750, and ZU660e DuraCore laser projectors, making it a strong fit for fixed installs where image placement, alignment, and room constraints all matter. For integrators, this lens helps preserve projector placement while expanding placement options for immersive spaces, theme park attractions, and other demanding environments. The motorized zoom supports faster adjustment during commissioning and reduces the friction of fine-tuning a large-format image. When the installation calls for short-throw projection with dependable optical performance, this lens delivers the control and flexibility expected in higher-value AV deployments.