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Long Range Hunting & Shooting
15x power binos
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<blockquote data-quote="Buck Buster" data-source="post: 1487190" data-attributes="member: 99718"><p>15 power would be worse in the dim light ! The greater the exit pupil the better you can normally see in early morning & late evening situations ! The most expensive glass has special coatings that help with the light transmission, but you said you have trouble seeing in dim light so a 15 power in the same brand binoculars with the 42mm lenses would let less light in making it more difficult to see in dim light ! Exit pupil is derived by dividing the power into the size of the objective lenses, the mm size. Your current pair would be 42 divided by 10 = 4.2 exit pupil while this is pretty good, an exit pupil of 5 or 6 should let more light in making it easier to see in dim light ! A pair of 15 x 80 binoculars would have an exit pupil of 5.3 this would normally be better unless the quality of the glass lenses is poor ! 10 x 50 would have an exit pupil of 5 ! I use a pair of Flake glasses, some people call them tank glasses that are 10 x 80 and they are fabulous in very little light, they have an exit pupil of 8 ! Hope you understand all of this, basically comparing the same quality of glasses the one with the largest exit pupil will allow you to see better in dim light ! You can also research exit pupil yourself if you want to understand it better ! Good luck hunting and be safe !</p></blockquote><p></p>
[QUOTE="Buck Buster, post: 1487190, member: 99718"] 15 power would be worse in the dim light ! The greater the exit pupil the better you can normally see in early morning & late evening situations ! The most expensive glass has special coatings that help with the light transmission, but you said you have trouble seeing in dim light so a 15 power in the same brand binoculars with the 42mm lenses would let less light in making it more difficult to see in dim light ! Exit pupil is derived by dividing the power into the size of the objective lenses, the mm size. Your current pair would be 42 divided by 10 = 4.2 exit pupil while this is pretty good, an exit pupil of 5 or 6 should let more light in making it easier to see in dim light ! A pair of 15 x 80 binoculars would have an exit pupil of 5.3 this would normally be better unless the quality of the glass lenses is poor ! 10 x 50 would have an exit pupil of 5 ! I use a pair of Flake glasses, some people call them tank glasses that are 10 x 80 and they are fabulous in very little light, they have an exit pupil of 8 ! Hope you understand all of this, basically comparing the same quality of glasses the one with the largest exit pupil will allow you to see better in dim light ! You can also research exit pupil yourself if you want to understand it better ! Good luck hunting and be safe ! [/QUOTE]
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