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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Swift Reliant 743 7-21x25mm Compact Zoom Binocular

$119.99

Athlon Optics Argos 8x34mm Binocular

$169.99

Athlon Optics Talos 10x32mm Binocular

$129.99

Athlon Optics Neos 10x32mm Binocular

$79.99

Athlon Optics Neos 8x32mm Binocular

$69.99

Athlon Optics Cronus 15x56mm Binocular

$699.99

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

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