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K&F Concept 10x42 BAK4 Prism FMC Binocular Telescope EASY TO FOCUS For those who do not wear glasses, twist up the eyepiece by rotating anticlockwise to gain the maximum view; and for those near-sighted, twist down it by rotating clockwise. Adjust the pupil diantance, expanding or folding the binocular to adjust the distance between two eyes to make the viewing picture a circle. Get the best view and clarity by adjusting the center focus wheel.
Specifications: Magnification: 10x Objective lens diameter: 42mm Type of prism: BAK4 Waterproof: IP64 Eye Relief: 17mm Exit pupil: 4.1mm Field Angle: 5.8° Field of view: 101m/1000m Resolution: 5.65” Close Focus: 5m Product Dimensions: 150x126x58 mm Net weight: 615g