Wednesday, December 25, 2013

How is Exit Pupil calculated?

What is the exit pupil on item 4208 the Eagle Optics Ranger 8x42 Binocular, please?

Thank you.



Hi Tom,
Thanks for your inquiry.  The exit pupil on the 8x42 Ranger (and all 8x42 binoculars) is 5.25mm.  This is calculated by dividing the objective lens size (42) by the magnification (8).

 If you have any other questions, just let us know.

Best Regards,
Eagle Optics

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