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Product Information Features ergonomic sleek rubber-coated design, precision aligned, multi-coated optics for sharp images and central focus with diopter adjustment to regulate vision imbalance. Aspherical lenses eliminate virtually all distortion. Recommended for both general daylight and low-light viewing. Ideal for birding. 3081024 Power: 8x Objective Diameter: 40mm Focusing System: Center Angle of View: 8.2 Field of View @1,000 yds.): 430 ft. Exit Pupil Diameter: 5mm Brightness Index: 25 Eye Relief: 11.8mm 3081947 Power: 12x Objective Diameter: 50mm Focusing System: Center Angle of View: 5.5 Field of View @1,000 yds.): 288 ft. Exit Pupil Diameter: 4.2mm Brightness Index: 17.6 Eye Relief: 9.4mm  Tell a Friend about this item
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