The “42” in our 10x42 binocular refers to the diameter of the objective (front) lens in millimeters. Since the objectives will often be the largest portion of the optic, it will affect the overall size and weight of the binocular, and how much light it can gather.

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Athlon Optics Neos 12x50mm Porro Binocular

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Swift 930 Ultra 10x42mm Waterproof Binoculars

$549.99

Levenhuk Wise Plus 10x42mm Monocular

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Leupold BX-4 Pro Guide 10x32mm HD Roof Prism Binocular

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