They bring great clarity and brightness within the reach of user. For long range viewing, a dual focus wheel system enables fast and fine-tuning focus adjustment allows you to lock onto your target and zoom in for more detail clearly. The light-weight body is fogproof, waterproof, and filled with nitrogen gas to prevent internal fogging and promote better thermal stability. K9 has low inclusions and bubbles, used for lenses and prisms for lasers and optics. It has good physical properties and can be polished like leaded glass.
It also weighs approximately 15% less than full (24%) leaded glass (crystal). Variable 25x to 75x Zoom Magnification.
Variable 25x to 75x zoom magnification allows you to view a wide field of view at a lower power and zoom in details at a higher power. The twist-up eyecups let the user dial exactly the need of eyecup extension. Twist-ups also maintain their positions without collapsing at crucial moments. Water Proofing and Fog Proofing. The light-weight body is fog proofing, water proofing, and filled with nitrogen gas to prevent internal fogging, promote better thermal stability and enable the scope to withstand the toughest environments.
Fully multi-coated 100mm objective lens increases the light transmission, delivers bright, clears and crisps images even in low-light conditions. Reduce glare and shields the objective lens from scratch, damage and raindrop.
180°adjustable angle meets the observation requirements in various scenes. For a long range viewing, a dual focus wheel system enables fast and fine-tuning and the focus adjustment allows you to lock your target and zoom for more clear details.SV406 25-75100 Dual Focus Spotting Scope. 2PCS Lens Covers (Eyepiece and Objective lens).