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80×80 HD Binoculars Telescope Quantity: 1 Material: Plastic Color: Black Reference resolution: 4.5 ° Prism system: Paul prism Target diameter: 20mm Objective lens diameter: 36mm Exit pupil diameter: 3.75mm Pupil exit distance: 13.1mm Lens coating: FMC multi-layer broadband coating Field of view angle: 8.5 ° Focusing method: center/right eye focusing Close focus distance: 5 meters Net weight of product: 540/670g