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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Bushnell Spectator Sport 8x25mm Porro Prism Binoculars

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Bushnell Engage Binoculars 8x42mm Roof Prism Binoculars

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Burris Signature HD 8x42mm Roof Prism Binoculars

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Bushnell Legacy 10-22x50mm Binocular

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Bushnell Marine 7x50mm Porro Prism Binoculars

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