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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
50mm scope vs 40mm/42mm etc...
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<blockquote data-quote="Buano" data-source="post: 440629" data-attributes="member: 21641"><p>The larger the objective lens, the more light a scope can let in. Mid-day a large objective lens doesn't help unless using extreme magnification, but a 50mm can give you another 20 minutes of shooting light at dawn & dusk & also helps in crappy weather, where there isn't much light to see by. Assuming the same glass quality, a 50 mm objective lens lets 56% more light through than a 40 mm lens. That's the reason people choose a 50 mm scope.</p><p></p><p>The negatives of a large scope is easy: They are heavy & they cost more.</p><p></p><p>Tube diameter limits range of adjustments but does little to improve visual quality.</p></blockquote><p></p>
[QUOTE="Buano, post: 440629, member: 21641"] The larger the objective lens, the more light a scope can let in. Mid-day a large objective lens doesn't help unless using extreme magnification, but a 50mm can give you another 20 minutes of shooting light at dawn & dusk & also helps in crappy weather, where there isn't much light to see by. Assuming the same glass quality, a 50 mm objective lens lets 56% more light through than a 40 mm lens. That's the reason people choose a 50 mm scope. The negatives of a large scope is easy: They are heavy & they cost more. Tube diameter limits range of adjustments but does little to improve visual quality. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
50mm scope vs 40mm/42mm etc...
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