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davidmcgo
sage
Reged: 10/09/04
Posts: 447
Loc: San Diego, CA
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Re: New 125mm binoculars from Vixen
06/26/08 10:13 PM
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Hi Tammy,
If you move the ruler to where the projected light is sharp edged, that would show the exact exit pupil diameter I think. There can be a difference between how it appears on the eyepiece exit as you've photographed and at optimal position where you'd get a focused disk on the frosted ruler.
Dave
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