{"product_id":"meiji-auxiliary-protective-microscope-lenses-ma517-ma526-ma531","title":"Meiji Microscope Auxiliary \u0026 Protective Lenses","description":"\u003cp\u003eScrew-in lenses that change how much room you have beneath a stereo microscope at the bench and that shield the optics when no auxiliary lens is fitted.\u003c\/p\u003e\u003cp\u003eAuxiliary and protective lenses are essential accessories for Meiji and OttoSetters microscopes, allowing jewelers, stone setters, and engravers to \u003cstrong\u003eincrease working distance\u003c\/strong\u003e between the lens and the work surface. By threading directly onto the microscope head, auxiliary lenses provide more room for hands and tools while simultaneously expanding the field of view, a critical advantage when manipulating gravers, prongs, or delicate settings. Although auxiliary lenses reduce the top-end magnification, this is rarely a limitation in practice, as nearly all bench work is performed at the lower end of a microscope's magnification range. When higher magnification is needed, simply remove the auxiliary lens.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003e.0X Protective Lens (129.409B)\u003c\/strong\u003e installs in the same location as an auxiliary lens but does not alter the microscope's natural focal length or magnification. It is recommended as a protective cover for your optics whenever an auxiliary lens is not in use.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIncreases working distance to give hands and tools more room beneath the microscope head\u003c\/li\u003e\n\u003cli\u003eExpands field of view while reducing top-end magnification, ideal for stone setting and engraving\u003c\/li\u003e\n\u003cli\u003eAuxiliary lenses are easily removable when higher magnification is required\u003c\/li\u003e\n\u003cli\u003eProtective lens preserves natural focal length and magnification while shielding optics\u003c\/li\u003e\n\u003cli\u003eGenuine Meiji lenses for superior optical quality\u003c\/li\u003e\n\u003cli\u003eCompatible with Meiji and OttoSetters microscopes\u003c\/li\u003e\n\u003cli\u003e.5X auxiliary lens is standard on most Meiji EMZ-5 microscope kits\u003c\/li\u003e\n\u003cli\u003e.0X protective lens is standard on most Meiji EMZ-10 microscope kits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAvailable Options\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eMagnification\u003c\/th\u003e\n\u003cth\u003eWorking Distance (Meiji Scopes)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e129.409B\u003c\/td\u003e\n\u003ctd\u003eProtective Lens (Meiji MA531)\u003c\/td\u003e\n\u003ctd\u003e.0X\u003c\/td\u003e\n\u003ctd\u003eNo change to natural focal length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e129.412\u003c\/td\u003e\n\u003ctd\u003eAuxiliary Lens (Meiji MA517)\u003c\/td\u003e\n\u003ctd\u003e.5X\u003c\/td\u003e\n\u003ctd\u003e150 mm (5.9\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e129.413\u003c\/td\u003e\n\u003ctd\u003eAuxiliary Lens (Meiji MA526)\u003c\/td\u003e\n\u003ctd\u003e.75X\u003c\/td\u003e\n\u003ctd\u003e97 mm (3.8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eThese are genuine Meiji lenses, compatible with Meiji and OttoSetters microscopes. The performance data given applies to Meiji scopes only; use on OttoSetters scopes will produce slightly different but similar results.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWorking distance data applies to Meiji scopes only. Results on OttoSetters scopes will be similar but may vary slightly.\u003c\/li\u003e\n\u003cli\u003eUse the .0X protective lens to protect the optics whenever an auxiliary lens is not installed.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Meiji Techno Microscopes","offers":[{"title":".0X Protective Lens","offer_id":43578999636182,"sku":"129.409B","price":110.0,"currency_code":"USD","in_stock":true},{"title":".5X Auxiliary Lens","offer_id":43578999701718,"sku":"129.412","price":190.0,"currency_code":"USD","in_stock":true},{"title":".75X Auxiliary Lens","offer_id":43578999734486,"sku":"129.413","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/meiji-microscope-auxiliary-and-protective-lenses-otto-frei.jpg?v=1719958724","url":"https:\/\/www.ottofrei.com\/it\/products\/meiji-auxiliary-protective-microscope-lenses-ma517-ma526-ma531","provider":"Otto Frei","version":"1.0","type":"link"}