{"product_id":"hejnar-photo-10-inch-lead-screw-micro-focusing-rai","title":"10 Inch Lead Screw Micro Focusing Rail with Arca-Swiss Clamp","description":"\u003c!-- ===================== GRAY HEADER BANNER ===================== --\u003e \n\u003cdiv style=\"background:#f4f4f4; border-left:4px solid #333; padding:15px; margin-bottom:25px; font-family:Arial, sans-serif;\"\u003e \n    \u003cstrong style=\"font-size:18px; color:#222;\"\u003e10-Inch Lead Screw Micro Focusing Rail with Quick Release Clamp – Made in USA\u003c\/strong\u003e \n\u003c\/div\u003e \n\n\u003c!-- ===================== H1 SEO HEADLINE ===================== --\u003e\n\u003ch1 style=\"font-family:Arial, sans-serif; font-size:24px; color:#111; margin-bottom:20px; line-height:1.3;\"\u003e10 Inch Lead Screw Micro Focusing Rail with Arca-Swiss Clamp\u003c\/h1\u003e\n\n\u003c!-- ===================== INTRODUCTORY OVERVIEW ===================== --\u003e \n\u003cdiv style=\"font-family:Arial, sans-serif; line-height:1.6; color:#333; margin-bottom:25px;\"\u003e\n    \u003cp style=\"font-size:15px;\"\u003eAchieve flawless focus stacking and ultra-precise camera alignment with this premium \u003cstrong\u003e10-Inch Lead Screw Micro Focusing Rail\u003c\/strong\u003e. Proudly engineered and manufactured in the USA, this heavy-duty macro slider delivers mathematical precision for high-magnification photography. Featuring a dual-positioning system, it allows for instant macro adjustments alongside micro-fine knob turns down to 0.1mm increments. Built with an Arca-compatible base and a modular quick-release clamp, it provides the uncompromising stability required for professional studio and field workflows.\u003c\/p\u003e \n\u003c\/div\u003e\n\n\u003chr style=\"border:0; border-top:1px solid #ddd; margin:25px 0 Pap;\"\u003e \n\n\u003c!-- ===================== KEY FEATURES SECTION ===================== --\u003e \n\u003cdiv style=\"font-family:Arial, sans-serif; margin-bottom:25px;\"\u003e\n    \u003ch2 style=\"font-size:20px; color:#111; margin-bottom:15px; border-bottom:1px solid #ccc; padding-bottom:5px;\"\u003eQuick Overview \u0026amp; Key Features\u003c\/h2\u003e \n    \u003cul style=\"padding-left:20px; line-height:1.8; font-size:14px;\"\u003e \n        \u003cli\u003e\n\u003cstrong\u003eMicro-Fine Lead Screw Drive:\u003c\/strong\u003e Delivers exactly 1.06 mm (0.0416\") of travel per full revolution for ultra-precise focusing.\u003c\/li\u003e \n        \u003cli\u003e\n\u003cstrong\u003eSub-Millimeter Increments:\u003c\/strong\u003e Features a graduated scale providing 0.1 mm (0.004\") of linear movement per division.\u003c\/li\u003e \n        \u003cli\u003e\n\u003cstrong\u003eFast-Positioning Release Button:\u003c\/strong\u003e Instantly disengages the lead screw to slide the stage quickly into position without tedious cranking.\u003c\/li\u003e \n        \u003cli\u003e\n\u003cstrong\u003e4-Position Quick Release Clamp:\u003c\/strong\u003e Integrated top clamp can be reoriented in 90-degree steps to match any camera body or lens plate layout.\u003c\/li\u003e \n        \u003cli\u003e\n\u003cstrong\u003eArca-Swiss Base Geometry:\u003c\/strong\u003e The bottom rail features an integrated double-dovetail profile that locks into standard Arca-style tripod clamps.\u003c\/li\u003e \n        \u003cli\u003e\n\u003cstrong\u003eGenerous Adjustment Span:\u003c\/strong\u003e Offers a maximum micro-travel distance of up to 6.3 inches.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh Load Capacity:\u003c\/strong\u003e Robust mechanics support up to 15 lbs horizontally (parallel to ground) and up to 10 lbs vertically (90 degrees perpendicular).\u003c\/li\u003e \n        \u003cli\u003e\n\u003cstrong\u003eAmerican Craftsmanship:\u003c\/strong\u003e Machined and assembled in the USA with strict tolerances for professional-grade reliability.\u003c\/li\u003e \n    \u003c\/ul\u003e \n\u003c\/div\u003e\n\n\u003chr style=\"border:0; border-top:1px solid #ddd; margin:25px 0;\"\u003e \n\n\u003c!-- ===================== DETAILED PRODUCT DESCRIPTION ===================== --\u003e \n\u003cdiv style=\"font-family:Arial, sans-serif; line-height:1.6; color:#333;\"\u003e\n    \u003ch2 style=\"font-size:20px; color:#111; margin-bottom:15px; border-bottom:1px solid #ccc; padding-bottom:5px;\"\u003eComprehensive Product Description\u003c\/h2\u003e \n    \u003cp style=\"font-size:14px; margin-bottom:15px;\"\u003eThe 10-Inch Lead Screw Micro Focusing Rail is an indispensable tool for macro, product, and scientific photography where depth of field is razor-thin. By moving the camera sensor rather than adjusting the lens focus ring, this rail maintains a constant reproduction ratio, allowing you to systematically capture perfect image slices for focus stacking software.\u003c\/p\u003e \n    \n    \u003cp style=\"font-size:14px; margin-bottom:15px;\"\u003eThis rail features a dual-drive system designed for efficient field use. For rough framing, simply press the quick-release stage button to slide the camera freely along the 6.3-inch travel path. Once close to your subject, release the button to engage the high-precision lead screw mechanism. Turning the control knob allows you to dial in your focal plane with microscopic control. Each incremental mark on the adjustment scale translates to an ultra-fine 0.1mm of travel, while a complete 360-degree rotation advances the camera exactly 1.06mm.\u003c\/p\u003e \n    \n    \u003cp style=\"font-size:14px;\"\u003eMounting and rig integration are completely seamless. The base rail slides directly into any standard Arca-Swiss compatible tripod head clamp. On top, the slider stage is equipped with a premium quick-release clamp that can be repositioned in four different orientations. This modular flexibility allows you to run your camera setup parallel or perpendicular to the rail footprint. Engineered to manage hefty professional setups, its rigid construction safely holds heavy telephoto and macro lens configurations up to 15 lbs horizontally, and up to 10 lbs in a vertical orientation for down-angle studio work.\u003c\/p\u003e \n\u003c\/div\u003e","brand":"Hejnar Photo","offers":[{"title":"Default Title","offer_id":67701616967785,"sku":"MS5P-10-KS","price":375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/files\/MS5P-10-KS_003.jpg?v=1793717781","url":"https:\/\/www.hejnarphotostore.com\/products\/hejnar-photo-10-inch-lead-screw-micro-focusing-rai","provider":"Hejnar Photo","version":"1.0","type":"link"}