Optical Characteristics

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The optical characteristics of a binocular. For example, 8×30 or 7×50. The first number (for example 8 or 7) of binocular markings indicate how much larger an object appears in the binoculars compared to looking at the object without binoculars. Read more under Magnification. The second number of characteristics, for example 30 or 50, indicates the objective diameter in millimetres. For more information see Objective Diameter.

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