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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Absolute Best Low Light Scope with Illuminated Dot (No Price Limit)
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<blockquote data-quote="Riflehunter1776" data-source="post: 1848770" data-attributes="member: 103369"><p>I'm no optics engineer, but the way I understand it is this: In addition to the magnification and objective diameter giving the exit pupil calculation, and the coating allowing light transmission in a spectrum geared for low light use (some coatings cheat by making a scope look fantastic in controlled light, but they die at twilight) fewer lenses will make a scope brighter.</p><p></p><p>For example, if an optics company claims "98% light transmission per lense surface" you are losing 2% of your light for each lense it has to pass through. That can become very noticeable in the target scopes with a wide range of magnification, which have more lenses. Even the best of these type of scopes are in the 80% range because of this, and a larger objective only goes so far.</p><p></p><p>Another thing to keep in mind is the erector set up. Scopes with higher magnification are usually designed to have the maximum amount of mechanical windage and elevation built into them. There is no free lunch. What is lost is a larger aperture in the erector set up. So, you have great glass, top-notch coatings, a hubble-sized objective .....and a tiny apeture which filters out too much light.</p><p></p><p>So, the brightest scopes should be a combination of best quality glass, top quality coatings designed for twilight not mid-day use, a large objective, an erector system that has a larger apeture and less mechanical range, and fewer internal lenses.</p><p></p><p>and for what it's worth, somebody ran their own test between the victory, t96, and R2 over at SH. </p><p> <a href="https://forum.snipershide.com/threads/compared-zeiss-victory-ht-meopta-r2-and-s-b-polar-t96.6917510/" target="_blank">https://forum.snipershide.com/threads/compared-zeiss-victory-ht-meopta-r2-and-s-b-polar-t96.6917510/</a></p></blockquote><p></p>
[QUOTE="Riflehunter1776, post: 1848770, member: 103369"] I'm no optics engineer, but the way I understand it is this: In addition to the magnification and objective diameter giving the exit pupil calculation, and the coating allowing light transmission in a spectrum geared for low light use (some coatings cheat by making a scope look fantastic in controlled light, but they die at twilight) fewer lenses will make a scope brighter. For example, if an optics company claims "98% light transmission per lense surface" you are losing 2% of your light for each lense it has to pass through. That can become very noticeable in the target scopes with a wide range of magnification, which have more lenses. Even the best of these type of scopes are in the 80% range because of this, and a larger objective only goes so far. Another thing to keep in mind is the erector set up. Scopes with higher magnification are usually designed to have the maximum amount of mechanical windage and elevation built into them. There is no free lunch. What is lost is a larger aperture in the erector set up. So, you have great glass, top-notch coatings, a hubble-sized objective .....and a tiny apeture which filters out too much light. So, the brightest scopes should be a combination of best quality glass, top quality coatings designed for twilight not mid-day use, a large objective, an erector system that has a larger apeture and less mechanical range, and fewer internal lenses. and for what it's worth, somebody ran their own test between the victory, t96, and R2 over at SH. [URL]https://forum.snipershide.com/threads/compared-zeiss-victory-ht-meopta-r2-and-s-b-polar-t96.6917510/[/URL] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Absolute Best Low Light Scope with Illuminated Dot (No Price Limit)
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