{"id":13424,"date":"2026-08-20T15:14:02","date_gmt":"2026-08-20T15:14:02","guid":{"rendered":"https:\/\/blog.tract-optics.co.za\/why-locking-diopters-matter-how-to-properly-set-yours-up\/"},"modified":"2026-08-20T19:36:49","modified_gmt":"2026-08-20T19:36:49","slug":"why-locking-diopters-matter-how-to-properly-set-yours-up","status":"publish","type":"post","link":"https:\/\/blog.tract-optics.co.za\/why-locking-diopters-matter-how-to-properly-set-yours-up\/","title":{"rendered":"Why Locking Diopters Matter &#038; How to Properly Set Yours Up"},"content":{"rendered":"<div class=\"space-y-3 mt-3\"><div id=\"rWhYFW4ZzbgZWoYdprNBJ-content-0\" class=\"group\/ai-message-item space-y-3 break-words\"><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 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\/why-locking-diopters-matter-how-to-properly-set-yours-up\/#Why_Locking_Diopters_Matter_How_to_Properly_Set_Yours_Up\" >Why Locking Diopters Matter &amp; How to Properly Set Yours Up<\/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\/why-locking-diopters-matter-how-to-properly-set-yours-up\/#Why_Locking_Focus_Locking_Diopters_Matter_in_the_Field\" >Why Locking Focus &amp; Locking Diopters Matter in the Field<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.tract-optics.co.za\/why-locking-diopters-matter-how-to-properly-set-yours-up\/#How_to_Properly_Focus_the_TORIC_10%C3%9742_Eagle_Ballistics_LRF_%E2%80%93_Locking_Diopters_Matter\" >How to Properly Focus the TORIC 10&#215;42 Eagle Ballistics LRF &#8211; Locking Diopters Matter\u00a0<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.tract-optics.co.za\/why-locking-diopters-matter-how-to-properly-set-yours-up\/#Step_1_%E2%80%94_Focus_the_HUD_Heads-Up_Display\" >Step 1 \u2014 Focus the HUD (Heads-Up Display)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.tract-optics.co.za\/why-locking-diopters-matter-how-to-properly-set-yours-up\/#Step_2_%E2%80%94_Focus_the_Right_Barrel_Optical_Image\" >Step 2 \u2014 Focus the Right Barrel (Optical Image)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/blog.tract-optics.co.za\/why-locking-diopters-matter-how-to-properly-set-yours-up\/#Step_3_%E2%80%94_Focus_the_Left_Barrel_Left_Diopter\" >Step 3 \u2014 Focus the Left Barrel (Left Diopter)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/blog.tract-optics.co.za\/why-locking-diopters-matter-how-to-properly-set-yours-up\/#After_Setup_One_Control_Does_It_All\" >After Setup: One Control Does It All<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/blog.tract-optics.co.za\/why-locking-diopters-matter-how-to-properly-set-yours-up\/#Why_Locking_Diopters_Matter_for_Hunters_Long-Range_Shooters\" >Why Locking Diopters Matter for Hunters &amp; Long-Range Shooters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/blog.tract-optics.co.za\/why-locking-diopters-matter-how-to-properly-set-yours-up\/#Final_Thoughts_%E2%80%93_Locking_Diopters_Matter\" >Final Thoughts &#8211; Locking Diopters Matter\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/blog.tract-optics.co.za\/why-locking-diopters-matter-how-to-properly-set-yours-up\/#Ready_to_upgrade_your_optics_setup\" >Ready to upgrade your\u00a0optics\u00a0setup?<\/a><\/li><\/ul><\/nav><\/div><h2><span class=\"ez-toc-section\" id=\"Why_Locking_Diopters_Matter_How_to_Properly_Set_Yours_Up\"><\/span>Why Locking Diopters Matter &amp; How to Properly Set Yours Up<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"text-2xl-medium [&amp;:not(:first-child)]:pt-6\"><strong>Why Locking Diopters Matter<\/strong>: Learn how a locking diopter and a superior focus mechanism improve <a href=\"https:\/\/blog.tract-optics.co.za\/understanding-ultra-high-definition-in-optics\/\">clarity<\/a>, stability, and performance in rangefinding <a href=\"https:\/\/blog.tract-optics.co.za\/videosview\/using-the-toric-15x56-in-the-field-2\/\">binoculars<\/a>, and <strong>follow a simple three\u2011step guide<\/strong> to properly set up your <a href=\"https:\/\/tractoptics.com\/toric-10x42-eagle-ballistics-laser-rangefinding-binocular\/\" target=\"_blank\" rel=\"noopener\">TORIC 10&#215;42 Eagle Ballistics LRF<\/a> for razor\u2011sharp viewing in the field.<\/p><p><span class=\"font-ligatures-none whitespace-pre-wrap\">Recently, Gabe from<a href=\"https:\/\/www.youtube.com\/@BackwoodsPursuit\" target=\"_blank\" rel=\"noopener\"> <em>Backwoods Pursuit<\/em> <\/a>shared why these features matter so much in the field, and <a href=\"https:\/\/blog.tract-optics.co.za\/why-we-work-with-james-eagleman\/\">Jon LaCorte<\/a> from TRACT walked through the exact three\u2011step process for properly focusing the <a href=\"https:\/\/tractoptics.com\/toric-10x42-eagle-ballistics-laser-rangefinding-binocular\/\" target=\"_blank\" rel=\"noopener\">TORIC 10&#215;42 Eagle Ballistics LRF<\/a>. When you combine these two perspectives, you get a complete guide that helps you understand <em>why<\/em> these features matter and <em>how<\/em> to set your <a href=\"https:\/\/blog.tractoptics.com\/toric-10x42-eagle-ballistics-lrf-binocular\/\" target=\"_blank\" rel=\"noopener\">binocular<\/a> up perfectly for your eyes.\u00a0<\/span><span class=\"font-ligatures-none whitespace-pre-wrap\">This blog brings both together.<\/span><\/p><p><iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/svH0NYzD5P8?si=tUibRDVJPBeyJGmd\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p><h2 class=\"text-xl-medium [&amp;:not(:first-child)]:pt-3.5 pb-1\"><span class=\"ez-toc-section\" id=\"Why_Locking_Focus_Locking_Diopters_Matter_in_the_Field\"><\/span><strong>Why Locking Focus &amp; Locking Diopters Matter in the Field<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><p><span class=\"font-ligatures-none whitespace-pre-wrap\">If you\u2019ve spent any time with binoculars in a chest <a href=\"https:\/\/blog.tract-optics.co.za\/the-basics-of-birding\/\">harness<\/a>, you already know how easy it is to bump your focus or diopter settings. <a href=\"https:\/\/backwoodspursuit.com\/about-backwoods-pursuit\/\" target=\"_blank\" rel=\"noopener\">Gabe<\/a> explains it well: every time you reach into your bino harness, you\u2019re grabbing the optic by the eyecups or the top housing \u2014 exactly where the diopter and focus adjustments live.<\/span><\/p><p><span class=\"font-ligatures-none whitespace-pre-wrap\">On standard binoculars, this means your settings can shift without you noticing. With rangefinding binoculars, the stakes are even higher because you\u2019re managing <strong>two separate adjustments<\/strong>:<\/span><\/p><ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\" role=\"list\"><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\"><span style=\"color: #ff6600;\"><strong>Right\u2011side diopter<\/strong><\/span> \u2014 sharpens the digital HUD display<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\"><span style=\"color: #ff6600;\"><strong>Left\u2011side diopter<\/strong><\/span> \u2014 fine\u2011tunes <a href=\"https:\/\/blog.tract-optics.co.za\/videosview\/best-high-powered-binoculars\/\">optical clarity<\/a> for your eye<\/span><\/li><\/ul><p><span class=\"font-ligatures-none whitespace-pre-wrap\">If either of these gets bumped, you can end up with:<\/span><\/p><ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\" role=\"list\"><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">A blurry image<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">A fuzzy or unreadable display<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Eye strain or a \u201ccross\u2011eyed\u201d feeling<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Slower ranging when seconds matter<\/span><\/li><\/ul><p><span class=\"font-ligatures-none whitespace-pre-wrap\">That\u2019s why <a href=\"https:\/\/backwoodspursuit.com\/\" target=\"_blank\" rel=\"noopener\">Gabe<\/a> calls locking mechanisms a <em>small feature that makes a big difference<\/em>. The T<a href=\"https:\/\/tractoptics.com\/toric-10x42-eagle-ballistics-laser-rangefinding-binocular\/\" target=\"_blank\" rel=\"noopener\">ORIC 10&#215;42 Eagle Ballistics LRF<\/a> includes <strong>locking diopters on both barrels<\/strong> and a <strong>locking center focus<\/strong>, ensuring your setup stays exactly where you left it \u2014 even after hours of hiking, glassing, and pulling your binos in and out of your harness.<\/span><\/p><h2 class=\"text-xl-medium [&amp;:not(:first-child)]:pt-3.5 pb-1\"><span class=\"ez-toc-section\" id=\"How_to_Properly_Focus_the_TORIC_10%C3%9742_Eagle_Ballistics_LRF_%E2%80%93_Locking_Diopters_Matter\"><\/span><strong>How to Properly Focus the TORIC 10&#215;42 Eagle Ballistics LRF &#8211; Locking Diopters Matter\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><p><span class=\"font-ligatures-none whitespace-pre-wrap\">Jon LaCorte breaks the process down into a simple, repeatable <strong>three\u2011step setup<\/strong>. Follow these steps in order, and you\u2019ll get the sharpest image and clearest HUD possible.<\/span><\/p><p><iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/SlBkeWD9bIc?si=VxJ_A_hgialEJj-r\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p><h3 class=\"text-lg-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\"><span class=\"ez-toc-section\" id=\"Step_1_%E2%80%94_Focus_the_HUD_Heads-Up_Display\"><\/span><strong><span style=\"color: #ff6600;\">Step 1 \u2014<\/span> Focus the HUD (Heads-Up Display)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3><p><span class=\"font-ligatures-none whitespace-pre-wrap\">This step ensures your ballistic data and ranging information appear crisp.<\/span><\/p><ol class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-5 marker:normal-nums marker:text-sm-strong\" role=\"list\" start=\"1\"><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Unlock the <strong>right diopter<\/strong>.<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Power up the rangefinder.<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Use the right diopter to adjust the HUD until the display is <strong>razor sharp<\/strong>.<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Lock the right diopter back down.<\/span><\/li><\/ol><p><span class=\"font-ligatures-none whitespace-pre-wrap\">This sets the digital portion of the binocular for your eye.<\/span><\/p><figure id=\"attachment_10380\" aria-describedby=\"caption-attachment-10380\" style=\"width: 457px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-10380\" title=\"Why Locking Diopters Matter &amp; How to Properly Set Yours Up\" src=\"https:\/\/blog.tractoptics.com\/wp-content\/uploads\/2026\/07\/HUD-Image-no-callouts-resize-1024x1024.jpg\" alt=\"Why Locking Diopters Matter\" width=\"457\" height=\"457\" \/><figcaption id=\"caption-attachment-10380\" class=\"wp-caption-text\">Why Locking Diopters Matter &#8211; Sharp, crisp head&#8217;s up display is critical<\/figcaption><\/figure><h3 class=\"text-lg-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\"><span class=\"ez-toc-section\" id=\"Step_2_%E2%80%94_Focus_the_Right_Barrel_Optical_Image\"><\/span><strong><span style=\"color: #ff6600;\">Step 2 \u2014<\/span> Focus the Right Barrel (Optical Image)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3><p><span class=\"font-ligatures-none whitespace-pre-wrap\">This step sets the primary optical focus for your dominant eye.<\/span><\/p><ol class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-5 marker:normal-nums marker:text-sm-strong\" role=\"list\" start=\"1\"><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Close your <strong>left eye<\/strong>.<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Find a target with fine detail \u2014 bark, rocks, grass, etc.<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Use the <strong>center focus knob<\/strong> to sharpen the right barrel until the image is crisp.<\/span><\/li><\/ol><p><span class=\"font-ligatures-none whitespace-pre-wrap\">This ensures your dominant eye is perfectly focused before adjusting the other barrel.<\/span><\/p><h3 class=\"text-lg-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\"><span class=\"ez-toc-section\" id=\"Step_3_%E2%80%94_Focus_the_Left_Barrel_Left_Diopter\"><\/span><strong><span style=\"color: #ff6600;\">Step 3 \u2014<\/span> Focus the Left Barrel (Left Diopter)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3><p><span class=\"font-ligatures-none whitespace-pre-wrap\">This step balances both eyes so your binocular feels natural and effortless.<\/span><\/p><ol class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-5 marker:normal-nums marker:text-sm-strong\" role=\"list\" start=\"1\"><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Unlock the <strong>left diopter<\/strong> by lifting it up.<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Close your <strong>right eye<\/strong>.<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Look at the same target you used in Step 2.<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Turn the left diopter until the image becomes <strong>razor sharp<\/strong>.<\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\">Lock the left diopter down.<\/span><\/li><\/ol><p><span class=\"font-ligatures-none whitespace-pre-wrap\">Once this step is complete, your binocular is fully calibrated.<\/span><\/p><h2 class=\"text-xl-medium [&amp;:not(:first-child)]:pt-3.5 pb-1\"><span class=\"ez-toc-section\" id=\"After_Setup_One_Control_Does_It_All\"><\/span><strong>After Setup: One Control Does It All<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><p><span class=\"font-ligatures-none whitespace-pre-wrap\">With both diopters locked, your binocular is now tuned to your eyes. From here on, you only need the <strong>center focus knob<\/strong> to adjust for different distances. The diopters stay locked, your HUD stays sharp, and your image stays consistent \u2014 exactly what you want in the field.<\/span><\/p><h2 class=\"text-xl-medium [&amp;:not(:first-child)]:pt-3.5 pb-1\"><span class=\"ez-toc-section\" id=\"Why_Locking_Diopters_Matter_for_Hunters_Long-Range_Shooters\"><\/span><strong>Why Locking Diopters Matter for Hunters &amp; Long-Range Shooters<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><p><span class=\"font-ligatures-none whitespace-pre-wrap\">The combination of:<\/span><\/p><ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\" role=\"list\"><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\"><strong>Dual locking diopters<\/strong><\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\"><strong>Locking center focus<\/strong><\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\"><strong>Precise HUD clarity<\/strong><\/span><\/li><li class=\"ps-2\"><span class=\"font-ligatures-none whitespace-pre-wrap\"><strong>Stable optical focus<\/strong><\/span><\/li><\/ul><p><span class=\"font-ligatures-none whitespace-pre-wrap\">means you can trust your binocular to perform exactly the same every time you pull it out of your harness. No surprises. No blurry display. No wasted seconds trying to refocus when an animal steps out.<\/span><\/p><p><span class=\"font-ligatures-none whitespace-pre-wrap\">It\u2019s one of those features you don\u2019t fully appreciate until you\u2019ve hunted with a bino that <em>doesn\u2019t<\/em> have it.<\/span><\/p><h2 class=\"text-xl-medium [&amp;:not(:first-child)]:pt-3.5 pb-1\"><span class=\"ez-toc-section\" id=\"Final_Thoughts_%E2%80%93_Locking_Diopters_Matter\"><\/span><strong>Final Thoughts &#8211; Locking Diopters Matter\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2><p><span class=\"font-ligatures-none whitespace-pre-wrap\">The <a href=\"https:\/\/tractoptics.com\/toric-10x42-eagle-ballistics-laser-rangefinding-binocular\/\" target=\"_blank\" rel=\"noopener\">TORIC 10&#215;42 Eagle Ballistics LRF<\/a> is built for serious hunters who demand reliability, clarity, and precision. The locking mechanisms are a standout feature that solve a real\u2011world problem, and Jon\u2019s three\u2011step focusing process ensures you get every ounce of performance the optic was designed to deliver.<\/span><\/p><h2><span class=\"ez-toc-section\" id=\"Ready_to_upgrade_your_optics_setup\"><\/span><span style=\"color: #ff6600;\"><strong>Ready to upgrade your\u00a0<a style=\"color: #ff6600;\" title=\"FFP vs. SFP Rifle Scopes: What You Need to Know Before You Buy\" href=\"https:\/\/tractoptics.com\/videosview\/ffp-vs-sfp-rifle-scopes-what-you-need-to-know-before-you-buy\/\" target=\"_blank\" rel=\"noopener\" data-ilj-link-preview=\"true\" data-featured-image=\"https:\/\/bunny-wp-pullzone-a5k5zuxa92.b-cdn.net\/wp-content\/uploads\/2022\/08\/IMG_4323-300x200.jpg\" data-excerpt=\"FFP vs. SFP Rifle Scopes: What You Need to Know Before You Buy. 1950If you\u2019re stepping into the world of rifle optics\u2014whether for precision rimfire, long-range shooting, or hunting\u2014you\u2019ve likely encountered the terms first focal plane (FFP) and second focal plane (SFP). And if you\u2019ve felt overwhelmed by the jargon, you\u2019re not alone.\" aria-expanded=\"false\">optics<\/a>\u00a0<a style=\"color: #ff6600;\" title=\"TRACT TORIC 30mm 1-8x24 LPVO Throw Lever installation\" href=\"https:\/\/tractoptics.com\/blog\/tract-toric-30mm-1-8x24-lpvo-throw-lever-installation\/\" target=\"_blank\" rel=\"noopener\" data-ilj-link-preview=\"true\" data-featured-image=\"\" data-excerpt=\"Whether you&amp;apos;re preparing for your first precision rifle competition or upgrading your hunting setup, installing a throw lever on your TRACT TORIC 30mm 1-8x24 LPVO can dramatically improve your speed and accuracy in the field.\" aria-expanded=\"false\">setup<\/a>?<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2><p>Phone:\u00a0<strong>631-662-7354<\/strong>\u00a0| Email:\u00a0<strong><a href=\"mailto:support@tractoptics.com\">support@tractoptics.com<\/a><\/strong>\u00a0|\u00a0<a href=\"https:\/\/tractoptics.com\/\" target=\"_blank\" rel=\"noopener\"><strong>Live Chat<\/strong>\u00a0Available<\/a><\/p><p><em>See what others are saying on Trustpilot:<\/em><\/p><p style=\"text-align: center;\"><a style=\"text-align: center; text-decoration: none;\" href=\"https:\/\/www.trustpilot.com\/review\/tractoptics.com?utm_medium=Trustbox&amp;utm_source=EmailNewsletter3\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"alignleft\" src=\"https:\/\/emailsignature.trustpilot.com\/newsletter\/en-US\/3\/5fc7afaa58a6e200016f0dfc\/520\/170\/light@2x.png?stars=5,4,3,2,1&amp;fontSize=default\" alt=\"\" width=\"520\" height=\"170\" border=\"0\" title=\"\"><\/a><\/p><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Why Locking Diopters Matter &#038; How to Properly Set Yours Up. Why Locking Diopters Matter: Learn how locking diopter and focus mechanisms improve clarity, stability, and performance in rangefinding binoculars<\/p>\n","protected":false},"author":2,"featured_media":13425,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4559,3616],"tags":[4809,4810,4811,4812,4813,4814,4815,4816,4817,4818,4819,4820,4747,4821,4822,4823,3499,4824,4825,4826],"class_list":["post-13424","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-binocular-rangefinder","category-eagleman","tag-ballistic-rangefinder-binoculars","tag-best-rangefinding-binoculars","tag-binocular-clarity-tips","tag-binocular-diopter-adjustment","tag-binocular-focus-instructions","tag-binocular-harness-tips","tag-binocular-setup-guide","tag-diopter-lock-advantages","tag-eagle-ballistics-review","tag-focus-lock-advantages","tag-hunting-optics-blog","tag-hunting-optics-setup","tag-laser-rangefinding-binoculars","tag-locking-diopter-binoculars","tag-locking-focus-mechanism","tag-lrf-binocular-tutorial","tag-precision-shooting-optics","tag-rangefinding-binocular-setup","tag-toric-10x42-eagle-ballistics-lrf","tag-western-hunting-gear"],"_links":{"self":[{"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts\/13424","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=13424"}],"version-history":[{"count":1,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts\/13424\/revisions"}],"predecessor-version":[{"id":13430,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/posts\/13424\/revisions\/13430"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/media\/13425"}],"wp:attachment":[{"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/media?parent=13424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/categories?post=13424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.tract-optics.co.za\/wp-json\/wp\/v2\/tags?post=13424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}