{"id":185,"date":"2017-02-14T07:37:45","date_gmt":"2017-02-14T07:37:45","guid":{"rendered":"https:\/\/tma65.com\/blog\/?p=185"},"modified":"2026-05-21T11:38:21","modified_gmt":"2026-05-21T11:38:21","slug":"the-best-performing-low-light-binocular","status":"publish","type":"post","link":"https:\/\/blog.tract-optics.co.za\/the-best-performing-low-light-binocular\/","title":{"rendered":"The Best Performing Low-Light Binocular"},"content":{"rendered":"<p><\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\"><div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p><span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.tract-optics.co.za\/the-best-performing-low-light-binocular\/#The_Best_Performing_Low-Light_Binocular\" >The Best Performing Low-Light Binocular<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.tract-optics.co.za\/the-best-performing-low-light-binocular\/#Light_Transmission_and_Optical_Quality\" >Light Transmission and Optical Quality<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.tract-optics.co.za\/the-best-performing-low-light-binocular\/#Exit_Pupil\" >Exit Pupil<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.tract-optics.co.za\/the-best-performing-low-light-binocular\/#Objective_Size\" >Objective Size<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div><h2 style=\"text-align: justify\"><span class=\"ez-toc-section\" id=\"The_Best_Performing_Low-Light_Binocular\"><\/span>The Best Performing Low-Light Binocular<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"wp-block-paragraph\" style=\"text-align: justify\">The Best Performing Low-Light <a href=\"https:\/\/blog.tract-optics.co.za\/thinking-about-air-rifle-hunting\/\">Binocular<\/a>. Hunters know that a lot of big game animals move at dusk and dawn, which is why we set out to create a great low light binocular that hunters can rely on. We spend many hours during fall and winter waiting for a big buck to show itself. When the moment arrives, we don\u2019t want to let it pass us by due to poor-performing optics.<\/p><p>&nbsp;<\/p><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><p class=\"wp-block-paragraph\" style=\"text-align: justify\">Had I understood the <a title=\"Benefits of a Waterproof Binocular\" href=\"https:\/\/tractoptics.com\/blog\/benefits-of-a-waterproof-binocular\/\" target=\"_blank\" rel=\"noopener\">benefits of using the right binocular<\/a> back when I first started hunting, I might have another trophy or two hanging on my wall and more meat in the freezer. I am sure every hunter has had the experience of desperately trying to determine if a deer is a shooter or not in low-light conditions. Heck, in the area where I grew up <a class=\"wpil_keyword_link\" href=\"https:\/\/tractoptics.com\/\" target=\"_blank\" rel=\"noopener nofollow\" title=\"hunting\" data-wpil-keyword-link=\"linked\" data-wpil-monitor-id=\"284\">hunting<\/a>, we were happy to see a legal buck. I can recall many times when I had to hold off because I was not sure. Better safe than sorry!<\/p><p>&nbsp;<\/p><p style=\"text-align: justify\">Of course, optics are a lot better today than they were 35 years ago. While back then I was more concerned with keeping things lightweight and compact, the little 8&#215;25 binocular I used wouldn\u2019t cut it. Compact <a class=\"wpil_keyword_link\" href=\"https:\/\/tractoptics.com\/binoculars\" target=\"_blank\" rel=\"noopener nofollow\" title=\"binoculars\" data-wpil-keyword-link=\"linked\" data-wpil-monitor-id=\"136\">binoculars<\/a> certainly have their place, but they weren&#8217;t designed for extreme conditions or with a lot of the features that make low light binoculars so valuable.<\/p><p>&nbsp;<\/p><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><h2 class=\"wp-block-heading\" style=\"text-align: justify\"><span class=\"ez-toc-section\" id=\"Light_Transmission_and_Optical_Quality\"><\/span>Light Transmission and Optical Quality<span class=\"ez-toc-section-end\"><\/span><\/h2><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><p class=\"wp-block-paragraph\" style=\"text-align: justify\">What allows one <a href=\"https:\/\/blog.tractoptics.com\/binoculars-for-turkey-hunting\/\" title=\"Binoculars for Turkey Hunting\" data-wpil-monitor-id=\"684\" target=\"_blank\" rel=\"noopener\">binocular<\/a> to perform better over another in low light? It\u2019s not just one element. Rather, it\u2019s a combination of things.<\/p><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><p class=\"wp-block-paragraph\" style=\"text-align: justify\">We use the highest quality optical glass available. However, if it\u2019s not coated with enough layers of anti-reflective compounds, a portion of the light will reflect off the glass, reducing the light transmission (as seen in the illustration below). By using the most advanced technologies in the coating process, and applying multiple layers of magnesium fluoride compounds to every air-to-glass lens surface, TRACT binoculars provide incredible light transmission so you can see everything at dusk and dawn.<\/p><p style=\"text-align: justify\">The addition of extra-low dispersion (ED) glass, which minimizes color fringing to provide extremely sharp edges of contrasting colors, and phase correction and dielectric coatings on the prisms, takes the performance to a completely different level. All of these elements together create what we call the ULTRA HD optical system.<\/p><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><figure class=\"wp-block-image\" style=\"text-align: justify\"><img decoding=\"async\" class=\"wp-image-187\" src=\"https:\/\/tma65.com\/wp\/wp-content\/uploads\/2019\/06\/inner27-1024x683.jpg\" alt=\"\" title=\"\"><figcaption><em>Superior light transmission is what makes the best low light binocular.<\/em><\/figcaption><\/figure><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><h3 class=\"wp-block-heading\" style=\"text-align: justify\"><span class=\"ez-toc-section\" id=\"Exit_Pupil\"><\/span>Exit Pupil<span class=\"ez-toc-section-end\"><\/span><\/h3><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><p class=\"wp-block-paragraph\" style=\"text-align: justify\">In our initial rollout, all TRACT binoculars have a <a title=\"42mm vs. 50mm Objective \u2013 Which is Best?\" href=\"https:\/\/tractoptics.com\/blog\/42mm-vs-50mm-objective-which-is-best\/\" target=\"_blank\" rel=\"noopener\">42mm objective<\/a>. The lower the magnification, which in our case is 8x, means the larger the exit pupil. That, in turn, results in a larger light path to your eye. Think of the exit pupil as a window &#8211; the larger the window, the more light allowed to come in.<\/p><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><p class=\"wp-block-paragraph\" style=\"text-align: justify\">This has no bearing on the quality of the optics, but it is very important because the exit pupil needs to match or exceed the dilation of your eye\u2019s pupil. Since your pupil dilates based upon the amount of available light, (two millimeters in bright sunlight compared to seven in darkness) the <a title=\"How to Make your Decoy and Binocular Do The Work!\" href=\"https:\/\/tractoptics.com\/blog\/how-to-make-your-decoy-and-binocular-do-the-work\/\" target=\"_blank\" rel=\"noopener\">binocular needs to provide an exit pupil of at least four to five millimeters to work<\/a> well, as your pupils will dilate that much in low light. If your eye\u2019s pupil is larger than the exit pupil of the binocular, it will be like looking through a pinhole. When the exit pupil of the binocular equals or exceeds the size of your pupil, it\u2019s like looking through a picture window.<\/p><p style=\"text-align: justify\">The way you figure out the exit pupil of the binocular is by dividing the objective size by the magnification. For example: 42\/8 = 5.25 millimeters and 42\/10 = 4.2 millimeters. As you can see, the\u00a0<a href=\"https:\/\/tractoptics.com\/blog\/8x-versus-10x-binoculars\" target=\"_blank\" rel=\"noopener\">8x binocular has a larger exit pupil than the 10x<\/a>, giving it a larger window of light.<\/p><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><h3 class=\"wp-block-image\" style=\"text-align: justify\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"651\" class=\"wp-image-188\" src=\"https:\/\/tma65.com\/wp\/wp-content\/uploads\/2019\/06\/inner28-1024x651.png\" alt=\"\" title=\"\" srcset=\"https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2019\/06\/inner28-1024x651.png 1024w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2019\/06\/inner28-300x191.png 300w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2019\/06\/inner28-768x488.png 768w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2019\/06\/inner28-472x300.png 472w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2019\/06\/inner28-150x95.png 150w, https:\/\/blog.tract-optics.co.za\/wp-content\/uploads\/sites\/4\/2019\/06\/inner28.png 1082w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/h3><h3 style=\"text-align: justify\"><\/h3><h3 style=\"text-align: justify\"><\/h3><h3 class=\"wp-block-heading\" style=\"text-align: justify\"><span class=\"ez-toc-section\" id=\"Objective_Size\"><\/span>Objective Size<span class=\"ez-toc-section-end\"><\/span><\/h3><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><p class=\"wp-block-paragraph\" style=\"text-align: justify\">Many people prefer <a href=\"https:\/\/blog.tract-optics.co.za\/toric-8x32-binocular-review-why-outdoor-life-named-it-a-great-buy\/\">compact binoculars<\/a> and they have their place, but they don\u2019t cut the mustard when it comes to performing at dawn and dusk. Others like larger objective binoculars, say 50 millimeters, striving to get even more light. But if you do the math correctly, you\u2019ll see that the exit pupil is five millimeters. Is it worth the additional bulk and weight?<\/p><p style=\"text-align: justify\"><\/p><p style=\"text-align: justify\"><\/p><p class=\"wp-block-paragraph\" style=\"text-align: justify\">As with all optics, there are always tradeoffs. If maximum low-light performance is important to you, choose an\u00a0<a href=\"https:\/\/www.tractoptics.com\/products\/binoculars\/toric-binoculars\" target=\"_blank\" rel=\"noopener\">8x binocular<\/a>. If seeing detail in expansive areas out west is needed, then choose the higher magnification\u00a0<a href=\"https:\/\/www.tractoptics.com\/products\/binoculars\/toric-10x42\" target=\"_blank\" rel=\"noopener\">10x binocular<\/a>. Either way, <a title=\"Bob Humphrey\u2019s TRACT Riflescope and Binocular Field Test\" href=\"https:\/\/tractoptics.com\/blog\/bob-humphreys-tract-riflescope-and-binocular-field-test\/\" target=\"_blank\" rel=\"noopener\">TRACT binoculars will provide some of the best extreme low-light performance of any binocular in its class and provide a lifetime of enhanced use in the field<\/a>.<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>The Best Performing Low-Light Binocular | TRACT design and engineer performance-grade optics without the added retail costs.<\/p>\n","protected":false},"author":2,"featured_media":12264,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2252,2254],"tags":[2422,2423,2424,2425,2428,2429,2431,2432,2433,2434,2436,2438,2439,2440,2441,2442,2443,2444,2447,2448,2451,2511],"class_list":["post-185","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-binoculars","category-binoculars-for-hunting","tag-best-hunting-binoculars-canada","tag-best-hunting-rangefinder","tag-best-hunting-scope","tag-best-hunting-scopes","tag-best-laser-rangefinder-for-hunting","tag-best-laser-rangefinder-for-shooting","tag-best-lens-color-for-water-sports","tag-best-lens-pen","tag-best-leupold-binoculars-for-hunting","tag-best-long-range-rifle","tag-best-monocular-for-hunting","tag-best-range-finder","tag-best-rangefinder","tag-best-rangefinder-binoculars","tag-best-rangefinder-binoculars-with-ballistic-calculator","tag-best-rangefinder-film-camera","tag-best-rangefinder-for-hunting","tag-best-rangefinder-for-target-shooting","tag-best-rifle-scope","tag-best-rifle-scopes","tag-best-smartphone-telescope-adapter","tag-binoculars-for-hunting"],"_links":{"self":[{"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts\/185","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/comments?post=185"}],"version-history":[{"count":1,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts\/185\/revisions"}],"predecessor-version":[{"id":11550,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts\/185\/revisions\/11550"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/media\/12264"}],"wp:attachment":[{"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/media?parent=185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/categories?post=185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/tags?post=185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}