Tuesday, February 1, 2011

Binocular exit pupil?

Q, from Mike:

What is the exit pupil of the Atlas Radian 8x 42?
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A: Exit Pupil is calculated from aperture or objective lens diameter divided by magnification, thus every 8x42 has the same exit pupil of 5.25mm.

Make sense?

If you have any further questions, we're happy to help. Give us a call at (800) 289-1132!


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