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 10x50mm Porro Binocular

$74.99

Athlon Optics Neos 12x50mm Porro Binocular

$99.99

Athlon Optics Cronus 15x56mm Binocular

$699.99

Levenhuk Heritage Base 15x50mm Binoculars

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$369.99

ATN BinoX THD 4.5-18x50mm 384x288 with HD Video Recording, Wi-Fi, GPS, Smooth Zoom Thermal Binoculars

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BSA 10-30x60mm Obj. Binocular

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