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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
50mm vs 42mm
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<blockquote data-quote="Varmint Hunter" data-source="post: 349820" data-attributes="member: 313"><p>Good response - I'd add this:</p><p></p><p>Ideally, during low light use you would want an exit pupil of about 6mm. In the 42mm objective that would be achieved with the power set on 7X. With a 50mm objective scope that would be achieved with the power set on 8.3X.</p><p></p><p>Sooo.. you could get the same amount of usable light from either scope except that the 50mm will allow you to get it at slightly higher magnification. Naturally, the comparison assumes that the two scopes are essentially the same except for the size of the objective lens.</p></blockquote><p></p>
[QUOTE="Varmint Hunter, post: 349820, member: 313"] Good response - I'd add this: Ideally, during low light use you would want an exit pupil of about 6mm. In the 42mm objective that would be achieved with the power set on 7X. With a 50mm objective scope that would be achieved with the power set on 8.3X. Sooo.. you could get the same amount of usable light from either scope except that the 50mm will allow you to get it at slightly higher magnification. Naturally, the comparison assumes that the two scopes are essentially the same except for the size of the objective lens. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
50mm vs 42mm
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