The Sanyo LNS-T51 is a professional ultra-long zoom lens engineered for specific high-performance Sanyo projector models, offering an extended zoom range to provide installation professionals with maximum flexibility in projector placement. Featuring a 1.67x zoom ratio, it delivers a wider range of throw distance adjustment compared to standard or semi-long zoom lenses. This expanded versatility is critical for challenging installation environments where the exact projector position may be uncertain during the planning phase or subject to change, such as in rental/staging applications, large auditoriums with variable seating configurations, or venues where the projector must be mounted at a great distance from the screen.

Optically, the lens is constructed with precision glass elements to maintain high image fidelity, sharpness, and uniform brightness across its entire zoom range. It is designed to handle the high luminous output and thermal conditions of large-venue projectors without introducing significant distortion or chromatic aberration. The lens incorporates smooth, manual zoom and focus rings, allowing for precise calibration to achieve a perfectly sized and sharply focused image on the screen. Its robust build ensures stable performance and maintains alignment over long-term use, even when the zoom mechanism is adjusted frequently.

This lens is an essential tool for AV system integrators facing complex site conditions or requiring future-proof flexibility. The extended zoom ratio of the LNS-T51 allows a single projector model to service a wider variety of room sizes and screen placements from a fixed mounting point, reducing the need for multiple projector/lens combinations. It provides a professional solution for achieving a bright, clear, and correctly proportioned image in large-scale installations where precise optical adjustment is necessary to meet specific throw distance and screen size requirements.