What's the Numbers on a Scope?
A Rifle Scope Specification Includes Two Numbers. the First Number Identifies the Magnification While the Second Number Identifies the Diameter of the...
A rifle scope specification includes two numbers. The first number identifies the magnification while the second number identifies the diameter of the objective lens. Thus, a specification of 8.5×50 describes a scope with 8.5× magnification and an objective lens that is 50 mm in diameter.
What does the numbers 3 9x40 mean on a scope?
In a 3-9x40 scope, the 3 means three power, or 3x. This means that the image you see through the scope appears three times (3x) closer than it does with your naked eye. The 9 means nine power, or nine times (9x) closer than it appears with your naked eye. The forty (40) is the objective lens diameter in millimeters.
What does 12x50 mean on a scope?
The magnification power of a 12x50 is 12 times magnification (12 times larger than normal unaided vision). So the "zoom difference" would be an increase of 20% in the magnification from a 10x42 to a 12x50. The objective lens diameter determines light gathering capability and the size of the field of view.
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