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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Tough Question On Scope: Objective & Exit Pupil
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<blockquote data-quote="Jon Jackoviak" data-source="post: 411162" data-attributes="member: 1825"><p>Sorry about the confusion. That question is not a simple as you ask. A 50mm scope will allow more light through the scope than a 40mm on the same power.</p><p></p><p>50/8 = 6.25mm</p><p>40/8 = 5.00mm</p><p></p><p>So if you have both scopes on 8 power the 50mm objective will allow 25% more light than the 40mm.</p><p></p><p>Now to get the same amount of light through the 40mm, you can just turn down the power to about 6.5 power.</p></blockquote><p></p>
[QUOTE="Jon Jackoviak, post: 411162, member: 1825"] Sorry about the confusion. That question is not a simple as you ask. A 50mm scope will allow more light through the scope than a 40mm on the same power. 50/8 = 6.25mm 40/8 = 5.00mm So if you have both scopes on 8 power the 50mm objective will allow 25% more light than the 40mm. Now to get the same amount of light through the 40mm, you can just turn down the power to about 6.5 power. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Tough Question On Scope: Objective & Exit Pupil
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