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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
NF Wedge Prism
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<blockquote data-quote="Frog4aday" data-source="post: 1809185" data-attributes="member: 9308"><p>That's a pretty clever idea. When light passes through a prism (think "triangular lens" with a base [btm] & apex [top]) the light rays are bent toward the base of the prism. For the person looking through the prism, the image appears to move toward the apex.</p><p></p><p>For every diopter of prism, the light (& image) are "shifted" by 1 centimeter, at a distance of 1 meter. Nightforce is using that principle to give us a sizable MOA/MIL 'shift' without having to dial the turrets. Just slide the device (prism) onto your scope and let the prism do the work vs. spinning the turrets a bunch of times & possibly running out of adjustment.</p></blockquote><p></p>
[QUOTE="Frog4aday, post: 1809185, member: 9308"] That's a pretty clever idea. When light passes through a prism (think "triangular lens" with a base [btm] & apex [top]) the light rays are bent toward the base of the prism. For the person looking through the prism, the image appears to move toward the apex. For every diopter of prism, the light (& image) are "shifted" by 1 centimeter, at a distance of 1 meter. Nightforce is using that principle to give us a sizable MOA/MIL 'shift' without having to dial the turrets. Just slide the device (prism) onto your scope and let the prism do the work vs. spinning the turrets a bunch of times & possibly running out of adjustment. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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NF Wedge Prism
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