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StarStuff1
sage
Reged: 04/01/07
Posts: 437
Loc: East Tennessee
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Re: Some tid-bits obout the 2.3x40 Owl eyes
06/20/08 05:59 PM
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Don't know if this has been answered before but I measured the exit pupil of my Russian 2.3X40s and found it to be around 8.5mm. I say "around" because there is no hard field stop. If the objective is 40mm and the actual magnification is 2.3X shouldn't the exit pupil be 17.4mm?
BTW I,ve had these about 12 years and still like them.
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Two dozen eyepieces, a dozen binoculars, a half dozen refractors, two reflectors and a homemade Image Intensifier Eyepiece (IIE). All products subject to change by the owner at any time.
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