{"product_id":"leica-pl-fluotar-100x-oil-immersion-objective-lens","title":"Leica PL Fluotar 100X Objective - Iris, Infinity Corrected, NA 1.30","description":"\u003cp style=\"font-family:'Segoe UI Emoji', sans-serif;\" class=\"MsoNormal\"\u003eThe \u003cstrong\u003eLeica PL Fluotar 100x\/1.30 Oil Iris\u003c\/strong\u003e is a premium fluorite oil immersion objective with a built-in iris diaphragm for Leica infinity-corrected microscopes, delivering 1.30 NA at 100x magnification with the flexibility to reduce NA for darkfield, oblique illumination, and improved depth of field — one of the most versatile high-magnification objectives in the Leica biological lineup.\u003c\/p\u003e\n\u003cp style=\"font-family:'Segoe UI Emoji', sans-serif;\" class=\"MsoNormal\"\u003e• 🔬 \u003cstrong\u003e100x \/ 1.30 NA oil immersion fluorite\u003c\/strong\u003e — high NA for maximum resolution and fluorescence light collection at 100x\u003cbr\u003e• 🌀 \u003cstrong\u003eBuilt-in iris diaphragm\u003c\/strong\u003e — adjustable NA for darkfield imaging, oblique contrast, and depth of field control without changing objectives\u003cbr\u003e• 🌟 \u003cstrong\u003ePL Fluotar (fluorite) correction\u003c\/strong\u003e — superior chromatic and spherical aberration correction for sharp, high-contrast brightfield and fluorescence images\u003cbr\u003e• ♾️ \u003cstrong\u003eInfinity corrected, M25 thread\u003c\/strong\u003e — fits all Leica infinity-corrected upright and inverted microscopes with M25 objective thread\u003cbr\u003e• ✨ \u003cstrong\u003eExcellent condition, flawless optics\u003c\/strong\u003e — inspected and verified, part no. 506009, made in Germany\u003cbr\u003e• 🎓 \u003cstrong\u003eUniversity purchase orders accepted\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"font-family:'Segoe UI Emoji', sans-serif;\" class=\"MsoNormal\"\u003e\u003cstrong\u003e🔧 Product Description\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-family:'Segoe UI Emoji', sans-serif;\" class=\"MsoNormal\"\u003eThe Leica PL Fluotar 100x\/1.30 Oil Iris is a fluorite-corrected oil immersion objective with a built-in iris diaphragm — a feature that sets it apart from standard fixed-NA 100x objectives. The iris allows the user to continuously adjust the effective NA of the objective from the maximum 1.30 down to lower values, enabling the same objective to be used for multiple contrast techniques without a nosepiece change. At full aperture (NA 1.30), the objective delivers maximum resolving power and fluorescence light collection for high-resolution brightfield and fluorescence imaging. Stopping down the iris reduces the NA, which can be used to generate darkfield contrast, oblique illumination effects, or increased depth of field for thick or uneven specimens — techniques that would otherwise require a separate darkfield condenser or objective. The PL Fluotar fluorite optical design provides significantly better chromatic and spherical aberration correction than standard achromat objectives, producing sharper images with improved contrast and color fidelity across the visible spectrum. The M25 infinity-corrected thread mount fits all Leica upright and inverted microscopes in the Leica infinity-corrected system. Supplied as a genuine Leica OEM objective (part no. 506009) manufactured in Germany in excellent condition with flawless optics.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"font-family:'Segoe UI Emoji', sans-serif;\" class=\"MsoNormal\"\u003e\u003cstrong\u003e🔎 Typical Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-family:'Segoe UI Emoji', sans-serif;\" class=\"MsoNormal\"\u003e• High-resolution brightfield and fluorescence imaging at 100x on Leica upright and inverted microscopes\u003cbr\u003e• Darkfield and oblique contrast imaging using the iris diaphragm without a separate darkfield condenser\u003cbr\u003e• Microbiology and bacteriology imaging requiring maximum NA at 100x oil immersion\u003cbr\u003e• Multi-technique workflows where a single objective must serve brightfield, fluorescence, and darkfield applications\u003cbr\u003e• Replacement or upgrade of 100x oil objectives on Leica infinity-corrected microscope systems\u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"font-family:'Segoe UI Emoji', sans-serif;\" class=\"MsoNormal\"\u003e\u003cstrong\u003e📊 Key Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse; font-family:'Segoe UI Emoji', sans-serif;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f2f2f2;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"background:#f2f2f2;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eLeica\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePL Fluotar 100x\/1.30 Oil Iris\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e506009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification\u003c\/td\u003e\n\u003ctd\u003e100x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumerical Aperture\u003c\/td\u003e\n\u003ctd\u003e1.30 (adjustable via iris)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImmersion Medium\u003c\/td\u003e\n\u003ctd\u003eOil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIris Diaphragm\u003c\/td\u003e\n\u003ctd\u003eYes — adjustable NA for darkfield and oblique contrast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Correction\u003c\/td\u003e\n\u003ctd\u003ePL Fluotar (Fluorite)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking Distance\u003c\/td\u003e\n\u003ctd\u003e0.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrection\u003c\/td\u003e\n\u003ctd\u003eInfinity Corrected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Mount\u003c\/td\u003e\n\u003ctd\u003eM25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eAll Leica Infinity-Corrected Microscopes (M25 thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eExcellent \/ Flawless Optics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003cp style=\"font-family:'Segoe UI Emoji', sans-serif;\" class=\"MsoNormal\"\u003eUniversity and institutional customers are welcome to submit purchase orders. Please contact us for net terms and procurement documentation.\u003c\/p\u003e","brand":"spachoptics","offers":[{"title":"Default Title","offer_id":51695288713517,"sku":"506009","price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/7965\/8029\/files\/PLFLUOTAR100X130060506009.jpg?v=1774377473","url":"https:\/\/www.spachoptics.com\/products\/leica-pl-fluotar-100x-oil-immersion-objective-lens","provider":"Spach Optics, Inc.","version":"1.0","type":"link"}