This product refers to a high-performance zoom lens manufactured by Christie for their Digital Systems line of projectors, specifically designed for XGA and SXGA resolution models. The lens, bearing the Minolta branding, indicates a collaboration or utilization of precision optics from Minolta, a renowned name in photographic and optical engineering. It is engineered for professional fixed-installation projectors used in demanding environments such as large boardrooms, higher education lecture halls, and control rooms where precise image sizing and placement are critical. The core function of this lens is to provide installers with significant flexibility in projector placement relative to the screen, thanks to its versatile 4.0:1 to 7.0:1 zoom ratio range, allowing for a wide variety of throw distances without compromising optical clarity or brightness.

The optical construction utilizes multi-element lens groups with specialized coatings to maximize light transmission, ensure color fidelity, and minimize aberrations like chromatic distortion. The "XGA/SXGA" designation confirms its optimization for the specific pixel arrays of those resolution projectors, ensuring a sharp, pixel-accurate image across the entire zoom and focus range. The zoom and focus mechanisms are designed for smooth, manual adjustment via external rings or levers, allowing for fine-tuning during installation to achieve a perfectly focused and sized image. The lens barrel is typically constructed from durable materials in a matte black finish to prevent internal reflections and maintain alignment within the projector's optical path.

This lens represents a key component in tailoring a projection system to a specific room's geometry. Its substantial zoom range means a single projector model can be deployed in a wider array of rooms, as the lens can compensate for less-than-ideal mounting positions. It is designed for integration into compatible Christie projector models, attaching via a standardized lens mount system. By offering a combination of reputable Minolta optics and a broad zoom capability, this lens enables system integrators to deliver consistently high-quality, bright, and sharply defined images from Christie's professional-grade XGA and SXGA projectors in complex installation scenarios.