{"product_id":"nikon-oil-darkfield-condenser","title":"Nikon Oil Darkfield Condenser","description":"\u003cp style=\"font-family:'Segoe UI Emoji', sans-serif;\" class=\"MsoNormal\"\u003eThe \u003cstrong\u003eNikon Oil Darkfield Condenser (MBL12000)\u003c\/strong\u003e is a genuine OEM high-NA oil immersion darkfield condenser for Nikon Eclipse series microscopes, providing numerical apertures of 1.20–1.43 for high-resolution darkfield illumination — enabling bright, high-contrast imaging of unstained specimens, bacteria, live cells, and colloidal particles against a dark background.\u003c\/p\u003e\n\u003cp style=\"font-family:'Segoe UI Emoji', sans-serif;\" class=\"MsoNormal\"\u003e• 🌑 \u003cstrong\u003eOil immersion darkfield condenser, NA 1.20–1.43\u003c\/strong\u003e — high NA for bright, high-contrast darkfield illumination at high objective magnifications\u003cbr\u003e• 🔬 \u003cstrong\u003eCompatible with Nikon Eclipse series\u003c\/strong\u003e — fits Nikon Eclipse E, Ni, Ci, and other upright Eclipse series microscope stands\u003cbr\u003e• 💧 \u003cstrong\u003eOil immersion\u003c\/strong\u003e — requires immersion oil between condenser top lens and slide for maximum NA and darkfield performance\u003cbr\u003e• 🧫 \u003cstrong\u003eIdeal for live-cell and blood analysis\u003c\/strong\u003e — reveals fine specimen detail invisible in brightfield without staining or fixation\u003cbr\u003e• 🏭 \u003cstrong\u003eGenuine Nikon OEM\u003c\/strong\u003e — catalog no. MBL12000, made in Japan, new condition\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 Nikon MBL12000 oil darkfield condenser is a high-numerical aperture oil immersion condenser designed to produce darkfield illumination on Nikon Eclipse series upright microscopes. In darkfield microscopy, the condenser directs light at oblique angles so that only light scattered by the specimen reaches the objective — producing bright, luminous images of specimen features against a completely dark background. This technique is particularly powerful for imaging unstained, transparent, or living specimens that produce little contrast in brightfield, including bacteria, spirochetes, blood cells, colloidal particles, and fine cellular structures. The oil immersion design (NA 1.20–1.43) is required for darkfield imaging with high-NA objectives (typically 40x–100x oil immersion), where the condenser NA must exceed the objective NA to maintain the darkfield condition. Immersion oil is applied between the condenser top lens and the underside of the slide to achieve the full NA range. The MBL12000 fits Nikon Eclipse series upright microscope stands and is supplied as a genuine Nikon OEM component in new condition.\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• Darkfield blood analysis and live blood microscopy for bacteria, spirochetes, and blood cell morphology\u003cbr\u003e• Microbiology imaging of unstained bacteria and microorganisms without fixation or staining\u003cbr\u003e• Colloidal particle and nanoparticle visualization using darkfield scattering contrast\u003cbr\u003e• Live-cell imaging of transparent specimens requiring high-contrast darkfield illumination\u003cbr\u003e• Replacement or upgrade of darkfield condensers on Nikon Eclipse series upright microscopes\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\u003eNikon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel \/ Catalog Number\u003c\/td\u003e\n\u003ctd\u003eMBL12000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eOil Immersion Darkfield Condenser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumerical Aperture\u003c\/td\u003e\n\u003ctd\u003e1.20 – 1.43\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\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eNikon Eclipse Series Upright Microscopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\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":51695333146925,"sku":"MBL12000","price":1040.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/7965\/8029\/files\/85d44d03-564b-46d8-9504-25e4c2202b3b.png?v=1783302319","url":"https:\/\/www.spachoptics.com\/products\/nikon-oil-darkfield-condenser","provider":"Spach Optics, Inc.","version":"1.0","type":"link"}