Binoculars Info » Pupil Diameter http://www.binoculars-info.com Binoculars - Information News Tue, 18 Nov 2008 20:56:33 +0000 en hourly 1 http://wordpress.org/?v=3.0 In a pair of binoculars, is there a way to get more light through the same sized exit pupil? http://www.binoculars-info.com/in-a-pair-of-binoculars-is-there-a-way-to-get-more-light-through-the-same-sized-exit-pupil/ http://www.binoculars-info.com/in-a-pair-of-binoculars-is-there-a-way-to-get-more-light-through-the-same-sized-exit-pupil/#comments Wed, 31 Oct 2007 11:26:25 +0000 admin http://www.binoculars-info.com/in-a-pair-of-binoculars-is-there-a-way-to-get-more-light-through-the-same-sized-exit-pupil/ binoculars
jondalar469 asked:


The exit pupil diameter is normally found by dividing the diameter of the objective lens by the power of the instrument. But there ought to be a way to get more light through the instrument without changing the exit pupil diameter. Maybe a preamplifier optical instrument that has a larger objective, which feeds the binocular objective from its own exit pupil?

Is there such an instrument? Would it be possible to make such an instrument?

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