Leupold Gr 10-20X40Mm Compact Spotting Scope Brown 61080 Best deal Leupold Gr 10-20X40Mm Compact Spotting Scope Brown 61080. Buy Leupold Gr 10-20X40Mm Compact Spotting Scope Brown 61080 now 100% customer satisfaction guarantee. Leupold Gr 10-20X40Mm Compact Spotting Scope Brown 61080
Amazon.com Offering waterproof, lightweight construction and excellent optical quality, Leupold's compact Golden Ring spotting scope gives you the performance of a much larger optic--use it handheld, or mount it on a trekking staff or tripod. Weighing just 15.8 ounces and 7.5 inches long, it's small enough to fit in a cargo pocket or carry around your neck on a lanyard. The multicoated lens system delivers a bright sight picture of exceptional clarity and contrast, with true-to-life color. This rugged, waterproof spotting scope is covered by the Leupold's Full lifetime warranty. Specifications: Actual magnification: 10x to 19.9x Linear field of view: 199 to 136 feet per 1000 yards/66 to 45 meters per 1000 meters Angular field of view: 3.8 to 2.6 degrees Objective aperture: 40mm Twilight factor: 20 to 28.3 Exit pupil: 4 to 2mm Eye relief: 18.5 to 17.2 mm Close focus distance: 5.5 feet/1.7 meters Weight: 15.8 ounces Length: 7.5 inches Leupold Full Lifetime Guarantee What is Twilight Factor? The twilight factor is calculated by taking the square root of the product of the magnification and the aperture. The higher the twilight factor, the better the resolution of the binocular when observing under dim light conditions. For example, a 10 X 40 (twilight factor 20) would effectively resolve better under these conditions than a 7 X 35 (twilight factor 15.4) even though the 10 X 40 has a smaller exit pupil. Remember, however, that the twilight factor does not take into account the transmittance or quality of the optical system. Features
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