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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Sig Sauer Zulu7 8x42mm BAK4 Prism Binoculars

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Sig Sauer Zulu5 8x42mm Binocular

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Burris Signature HD 8x42mm Roof Prism Binoculars

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Firefield Emissary 8x21mm Compact Binocular

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Pulsar Edge GS Super Night Vision 1+ 1x20mm Binoculars

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