The large lenses offer quality views of the landscape with optimal light gathering performance. 10X - 120X90 Green Binocular 298 FT/1000YDS At 10X 78M/1000M. At 10X Fully coated lenses for maximum light transmission and optimum brightness Plastic Covers For Lens And Eye Piece Heavy Duty Trim, ergonomic shape for easy, all-day use Textured, non-glare, non-slip rubber armor absorbs shock Dioptre adjustment for precise and reliable adjustments Wide apparent field of view (10X-120X90). While realizing a wide field of view, it assures a sharp and clear view all the way to the lens periphery. Extra-low dispersion glass corrects chromatic aberration that causes color fringing and realizes a contrast-rich and high-resolution image Phase-correction-coated roof prisms for high resolution and contrast Scratch-resistant coating is applied on the objective lens and eyepiece surfaces Long eye relief design ensures a clear field of view, even for eyeglass wearers Lead- and arsenic-free glass is used for all lenses and prisms Sturdy, lightweight magnesium alloy body Superior waterproof/fog proof performance with a nitrogen-filled body that resists water pressure to a depth and prevents fogging inside the optical system even in low-pressure environments. Soft-to-the-touch neck strap Objective lens caps are integrated to prevent loss Sharp, clear images to the lens periphery, thanks to our exclusive field flattener lens and eyepiece design Large focusing ring makes operation easy Manual instruction included Beautiful carrying Case IDEAL FOR Boating/Yachting Sports Bird Watching Travel