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General
Brand: PENTAX
Model Number: KB61393
Product Name: Jupiter III Binoculars
Color: Silver
Imaging
Magnification: 8 times
Objective Lens Diameter: 21 millimeters (Generally, the larger the diameter of the objective lens, the greater the light-collecting power and the brighter images will appear.)
Field of View at 1000 yards: 369 feet (The area of a target, measured horizontally from the location of viewing, that can be observed.)
Features
Size: Compact
Lens Coating: Multilayer coated (Chemical coatings on a lens reduce reflective light loss and improve light transmission. The different coating levels indicate the number of anti-reflective layers and the lens surfaces to which they're applied, ranging from coated (the most basic) to fully multi-coated (typical of high-end optics).)
Focus System: Center (The most common binocular focusing system is center focus, which features a centered wheel or lever (InstaFocus) between the barrels, and usually additional diopter adjustment. Individual focus binoculars allows each eyepiece to be adjusted independently.)
Eye Relief: 10 millimeters (The maximum distance between the eyepiece lens and user's eye at which the full field of view can be seen.)
Dimensions
Product Height: 7.25 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
Product Width: 6.5 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
Product Depth: 3 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
Product Weight: 0.3 pounds (The out of box weight of the item.)