{"product_id":"donegan-optivisor-al-s1-acrylic-lens-magnifier-set-4-lenses","title":"Optivisor AL-S1 Acrylic Lens Magnifier Set Complete with 4 Lenses","description":"\u003cp\u003eThe \u003cstrong\u003eOptivisor AL-S1\u003c\/strong\u003e is a complete headband magnifier set from Donegan that includes four interchangeable acrylic lens plates, giving jewelers, metalsmiths, and watchmakers the flexibility to choose the ideal magnification and working distance for any task. The AL series uses acrylic (plastic) lenses in place of the optical glass found in Donegan's premium OptiVisor line, offering the same renowned Donegan comfort and headband quality at a more accessible price point.\u003c\/p\u003e\n\n\u003cp\u003eLens plates swap out easily, allowing you to switch between magnification levels without interrupting your work. When selecting the right lens, consider your preferred \u003cem\u003eworking distance\u003c\/em\u003e — the focal length listed is the distance from the lens plate (not your eyes) at which objects are in sharpest focus. The diopter number in the upper left corner of each lens plate indicates its approximate power.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComplete set includes four acrylic lens plates covering a range of magnification levels\u003c\/li\u003e\n\u003cli\u003eAcrylic lenses provide a lower-cost alternative to optical glass while retaining Donegan's comfort and build quality\u003c\/li\u003e\n\u003cli\u003eLens plates are easily interchangeable for quick task-to-task transitions\u003c\/li\u003e\n\u003cli\u003eHeadband design keeps hands free during detailed bench work\u003c\/li\u003e\n\u003cli\u003eDesigned to compete with other headband magnifier systems using plastic lenses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eLens Type\u003c\/th\u003e\n\u003ctd\u003eAcrylic (plastic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Lens Plates Included\u003c\/th\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eOptivisor AL (AL-S1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Style\u003c\/th\u003e\n\u003ctd\u003eHeadband magnifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eLens Plate #\u003c\/th\u003e\n\u003cth\u003eMagnification\u003c\/th\u003e\n\u003cth\u003eFocal Length\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e1–3\/4× (1.75×)\u003c\/td\u003e\n\u003ctd\u003e14 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2× (2.00×)\u003c\/td\u003e\n\u003ctd\u003e10 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2–1\/2× (2.50×)\u003c\/td\u003e\n\u003ctd\u003e8 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e2–3\/4× (2.75×)\u003c\/td\u003e\n\u003ctd\u003e6 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThe focal length for each lens plate is the distance from the \u003cstrong\u003elens plate to the work surface\u003c\/strong\u003e — not the distance from your eyes. A higher magnification brings you closer to your work; lens plate #7 places you approximately 6 inches from the object, while lens plate #3 allows a more comfortable 14-inch working distance. Choose based on the task and your preferred bench posture.\u003c\/p\u003e","brand":"Donnegan","offers":[{"title":"Default Title","offer_id":43582974329046,"sku":"129.479","price":66.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/optivisor-al-s1-acrylic-lens-magnifier-set-complete-with-4-lenses-otto-frei.jpg?v=1719956790","url":"https:\/\/www.ottofrei.com\/products\/donegan-optivisor-al-s1-acrylic-lens-magnifier-set-4-lenses","provider":"Otto Frei","version":"1.0","type":"link"}