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Thread: Best 3-9x40 scope under $800?

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  1. #1
    Member Micky Duck's Avatar
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    Apr 2015
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    @Sarvo....had brain flash today about this....there is a formular out there that says your human eye can ONLY use a 7mm exit pupil ...so a 4x32mm scope has more light than your eye can use...a 6x40 has nearly all and a 6x42 is perfect..... look back to what are considered great scops or binos and you will find they pretty close to this equation.....which tells me my 3x9x50mm will be best on 7 power....balance act between most magnification and enough light.
    caberslash likes this.

  2. #2
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    Apr 2017
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    Marlborough - Pelorus Sound
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    Quote Originally Posted by Micky Duck View Post
    @Sarvo....had brain flash today about this....there is a formular out there that says your human eye can ONLY use a 7mm exit pupil ...so a 4x32mm scope has more light than your eye can use...a 6x40 has nearly all and a 6x42 is perfect..... look back to what are considered great scops or binos and you will find they pretty close to this equation.....which tells me my 3x9x50mm will be best on 7 power....balance act between most magnification and enough light.
    Moa Hunter the boy to explain that better
    caberslash likes this.

 

 

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