Just imagine the cinematic possibilities with the Sony 1.85x-4.0 Zoom Lens, specifically engineered for the SRX-R320P 4K Digital Cinema Projection Systems. This high-quality, durable lens is a product of Sony's innovative technology, offering advanced features and versatile zoom capabilities ranging from 1.85x to 4.0x. The lens is equipped with a unique memory feedback circuit, which communicates the focus and zoom position back to the projector. This smart feature allows operators to preset and recall different lens settings from the projector function memories, providing instant and automated screen sizing for video formats using varying aspect ratios. The Sony 1.85x-4.0 Zoom Lens covers a throw ratio from 1.85 to 4.00, where the throw ratio is defined as the throw distance divided by the screen width. This lens can accommodate a minimum 4.5-meter to a maximum 20-meter screen width on a Scope size screen (2.39:1) with the SRX-R320P operating on a 14ft-L operation. Designed with durability in mind, the motor-gear mechanism of the lens can withstand 20,000 times of reciprocating movement between the three aspect ratio zoom positioning - 2.39:1, 1.85:1, and 1.66:1. This makes the Sony 1.85x-4.0 Zoom Lens a reliable and long-lasting addition to your SRX-R320P 4K Digital Cinema Projection System. Experience the difference in quality and versatility with this advanced projection lens.