B08SBY1SQX Comet Sky Telescope Telescope 42X Binoculars for Adults Hd Optics Telescope Bak4 Prism Fmc Lens Professional Binocular Compact for Bird Watching/Outdoor Sports, Waterproof Fogproof

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Field angle: 8.2?
Magnification: 10 times, waterproof performance: waterproof, product weight: 730 g
Objective lens diameter: 42MM, exit diameter: 5.2MM, exit distance: 20mm, eyepiece diameter: 25mm
Field of view: 7.4 degrees, field of view: 129 meters / 1000 meters
Product size: 12cmx14cmx5cm,Optical coating: FMC fullsurface multilayer blue film