Interpupillary Distance

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How to pick a telescope / TermsInterpupillary Distance
Interpupillary Distance
The distance between the pupils of your eyes, measured from center to center when your eyes are focused on infinity, is called your interpupillary distance. You interpupillary distance will be smaller when looking at something nearby. Interpupillary distance is also the distance between the centers of a binocular’s exit pupils.



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