{"product_id":"sigma-70-200mm-dg-dn-os-arca-foot-sigfr004","title":"Sigma 70-200mm f\/2.8 DG DN OS Arca-Type Foot","description":"\u003c!-- ===================== GRAY BANNER ===================== --\u003e\n\u003cdiv style=\"background:#e5e5e5;padding:12px 15px;margin-bottom:18px;\"\u003e\n\t\u003cstrong\u003eHejnar Photo – SIGFR-004 Arca-Swiss Replacement Foot for Sigma 70-200mm f\/2.8 DG DN OS\u003c\/strong\u003e\n\u003c\/div\u003e\n\n\u003c!-- ===================== SEO BLOCK (TOP) ===================== --\u003e\n\u003ch1\u003eSigma 70-200mm f\/2.8 DG DN OS Arca-Type Foot\u003c\/h1\u003e\n\u003cp\u003e\nThe Hejnar Photo SIGFR-004 is a precision-engineered Arca-Swiss compatible replacement foot designed specifically for the Sigma 70-200mm f\/2.8 DG DN OS lens. This upgrade provides a native Arca-type dovetail for professional tripod mounting, featuring a double-dovetail profile and dual integrated stainless steel Quick Detach (QD) sockets for maximum security and modularity.\n\u003c\/p\u003e\n\u003chr\u003e\n\n\u003c!-- ===================== QUICK OVERVIEW ===================== --\u003e\n\u003ch2\u003eQuick Overview\u003c\/h2\u003e\n\u003cul\u003e\n\t\u003cli\u003eModel: SIGFR-004\u003c\/li\u003e\n\t\u003cli\u003eDirect replacement specifically for the Sigma 70-200mm f\/2.8 DG DN OS Lens\u003c\/li\u003e\n\t\u003cli\u003eDual QD Sockets: Integrated stainless steel Quick Detach sockets for secure strap mounting\u003c\/li\u003e\n\t\u003cli\u003eDouble-Dovetail Profile: Allows clamping from both the top and bottom surfaces\u003c\/li\u003e\n\t\u003cli\u003eErgonomic Design: Ample clearance for focusing ring access and lens hood reversal\u003c\/li\u003e\n\t\u003cli\u003ePrecision C.N.C. machined from 6061-T6 Aluminum\u003c\/li\u003e\n\t\u003cli\u003eBlack anodized surface for a professional, durable finish\u003c\/li\u003e\n\t\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- ===================== PRODUCT DESCRIPTION ===================== --\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003e\nUpgrade your Sigma telephoto workflow with a replacement foot built for precision and reliability. The SIGFR-004 provides a rock-solid Arca-Swiss foundation, eliminating the need for bulky adapter plates. Its double-dovetail design ensures universal compatibility with Arca-style clamps from RRS, Kirk, Acratech, and Wimberley, while allowing for secondary accessory mounting on the upper dovetail surface.\n\u003c\/p\u003e\n\u003cp\u003e\n\u003cstrong\u003eSecure Carrying \u0026amp; Integration:\u003c\/strong\u003e This foot features two built-in stainless steel QD sockets, the gold standard for secure carrying trusted by military and aerospace industries. The push-button mechanism prevents accidental release, making it the safest way to carry your lens on professional sling straps. The foot is designed to maintain the lens's full functionality, ensuring no interference with the focus ring or hood storage.\n\u003c\/p\u003e\n\n\u003c!-- ===================== INSTALLATION INSTRUCTIONS ===================== --\u003e\n\u003ch2\u003eSimple Installation\u003c\/h2\u003e\n\u003col\u003e\n\t\u003cli\u003eUse the included M3 hex key to remove the four factory Sigma screws.\u003c\/li\u003e\n\t\u003cli\u003eMount the SIGFR-004 using the four provided high-strength screws.\u003c\/li\u003e\n\t\u003cli\u003e\u003cem\u003eNote: For added security, we recommend applying a drop of Loctite 242 (blue) to prevent screws from loosening over time.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003c!-- ===================== SPECIFICATIONS ===================== --\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLens Compatibility:\u003c\/strong\u003e Sigma 70-200mm f\/2.8 DG DN OS\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 6061-T6 Aluminum\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Anodized Coat\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQD Sockets:\u003c\/strong\u003e Two (2) Integrated Stainless Steel\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHardware:\u003c\/strong\u003e M3 hex key and four mounting screws included\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hejnar Photo","offers":[{"title":"Default Title","offer_id":67701622866025,"sku":"SIGFR-004","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1278\/9353\/files\/SIGFR-004-2.jpg?v=1792111663","url":"https:\/\/www.hejnarphotostore.com\/products\/sigma-70-200mm-dg-dn-os-arca-foot-sigfr004","provider":"Hejnar Photo","version":"1.0","type":"link"}