The 18-36x 50mm prism design provides a versatile magnification range, making it ideal for a wide variety of applications. Whether scanning vast landscapes or focusing on distant targets, this optic ensures sharp, detailed images with exceptional clarity. Multi-coated optics enhance light transmission, delivering outstanding visual performance even in low-light conditions during dawn and dusk. Built to withstand the elements, the rugged waterproof and fogproof housing ensures durability and reliability in any environment. Designed for long-lasting performance, this optic is a dependable companion for every outdoor adventure. Designed to be airtight, keeping moisture out even when submerged in water, ensuring reliable performance in all environments, features a black finish with a straight eyepiece Waterproof construction with O-ring sealed optics keeps the interior dry, even when fully submerged in water Fully multi-coated optics feature multiple layers of anti-reflective coating on all air-to-glass surfaces, delivering bright, high-contrast images