* Large exit pupil provides bright images and ease of viewing * All lenses made of environment friendly Eco-glass * Use of magnesium alloy increases durability while reducing weight * The inner focus system decreases image movement when focusing * Eyepiece locking mechanism prevents the eyepiece from falling out or being lost * The advanced lens system of the TSN-880 Series allows for a compact size and achieves less chromatic aberration without compromising brightness * Little to no chromatic aberration; even at higher magnifications * New lens coatings increase the light transmission ratio, providing brighter and more natural viewing * Rugged and durable metal body * Waterproof and nitrogen purged to prevent the lens from fogging * Tripod mount with insert allows the use of 1/4 or 3/8 inch tripods * Symmetrical body shape and centre focus knob allows ease of use for right or left handed * Exceptionally rugged and durable metal body in natural green colour * Smooth and steady focusing * Rigorously tested to ensure long life and durability * 883 & 884 Only: Kowa's "Prominar" Pure Fluorite Crystal lenses eliminate chromatic aberration