SUPERIOR CLARITY - Experience unmatched image quality with the fluorite crystal objective lens, delivering exceptional detail and color fidelity for discerning observers. VERSATILE MAGNIFICATION - Seamlessly adjust from 17x to 40x magnification, adapting to various viewing distances and ensuring optimal clarity for any subject. COMPACT & LIGHTWEIGHT - Weighing only 33.86 oz and measuring 10.82', the TSN-55 PROMINAR offers exceptional portability without compromising optical performance. WIDE FIELD OF VIEW - Enjoy an expansive view with a field of view of 192 ft at 17x, allowing you to capture more of the scene and track moving subjects easily.