{"product_id":"olympus-umplanfl-n-20x-water-dipping-objective","title":"Olympus UMPLFLN 20X Water Immersion (Dipping) Microscope Objective (NA 0.50, Infinity)","description":"\u003cp class=\"MsoNormal\" style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003e\u003cb\u003eHigh-performance 20× water dipping objective with Plan Fluor optics for biological microscopy and fluorescence imaging of living specimens.\u003c\/b\u003e\u003c\/p\u003e\n\u003cul style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003e\n\u003cli\u003e💧 \u003cb\u003eWater Dipping Design\u003c\/b\u003e — Optimized for imaging living cells and tissues in aqueous media with minimal optical aberration.\u003c\/li\u003e\n\u003cli\u003e🔬 \u003cb\u003e20× Magnification, 0.50 NA\u003c\/b\u003e — Ideal balance of field of view and resolution for cellular and tissue imaging.\u003c\/li\u003e\n\u003cli\u003e📏 \u003cb\u003e3.5mm Working Distance\u003c\/b\u003e — Generous clearance accommodates coverslips and enables deep tissue penetration.\u003c\/li\u003e\n\u003cli\u003e🌟 \u003cb\u003ePlan Fluor Optical Quality\u003c\/b\u003e — Flat-field correction with fluorite elements for excellent chromatic correction and fluorescence performance.\u003c\/li\u003e\n\u003cli\u003e∞ \u003cb\u003eInfinity-Corrected Optics\u003c\/b\u003e — Compatible with Olympus BX, CX, and IX series biological microscopes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2 style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003e🔧 Product Description\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003eThe \u003cb\u003eOlympus UMPLFLN 20XW Water Immersion Objective (N2667600)\u003c\/b\u003e is a high-performance biological objective designed for \u003cb\u003eimaging living cells and tissues in aqueous environments\u003c\/b\u003e. Water immersion objectives are essential for biological microscopy because they eliminate the refractive index mismatch between the objective and aqueous specimens, providing \u003cb\u003esuperior image quality, reduced spherical aberration, and improved light transmission\u003c\/b\u003e compared to dry objectives when imaging in water or physiological media.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003eThe \u003cb\u003e20× magnification and 0.50 numerical aperture\u003c\/b\u003e provide an optimal balance between \u003cb\u003efield of view and resolution\u003c\/b\u003e, making this objective ideal for surveying tissue sections, imaging cell cultures, and examining larger cellular structures while maintaining sufficient resolution to visualize subcellular details. This magnification is particularly valuable in \u003cb\u003eneuroscience, developmental biology, and cell biology\u003c\/b\u003e where researchers need to observe multiple cells or tissue regions simultaneously.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003eThe \u003cb\u003e3.5mm working distance\u003c\/b\u003e provides generous clearance for accommodating standard coverslips and enables \u003cb\u003edeep tissue penetration\u003c\/b\u003e in thick specimens such as brain slices, organotypic cultures, and tissue explants. This extended working distance is critical for \u003cb\u003eelectrophysiology experiments\u003c\/b\u003e where microelectrodes or patch pipettes must access cells while maintaining optical observation.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003eThe \u003cb\u003ePlan Fluor (UMPLFLN) optical design\u003c\/b\u003e incorporates \u003cb\u003efluorite glass elements\u003c\/b\u003e that provide excellent chromatic aberration correction across the visible spectrum (400–700 nm). This correction is essential for \u003cb\u003efluorescence microscopy\u003c\/b\u003e where multiple fluorophores with different emission wavelengths are imaged simultaneously. The \u003cb\u003eflat-field (Plan) correction\u003c\/b\u003e ensures sharp focus across the entire field of view, eliminating the need to refocus when examining features at different positions in the field.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003eWater immersion objectives offer significant advantages over oil immersion for \u003cb\u003elive-cell imaging and long-term time-lapse experiments\u003c\/b\u003e. Water is non-toxic to cells, evaporates cleanly without residue, and maintains physiological conditions. The refractive index of water (n=1.33) closely matches that of aqueous biological specimens, minimizing spherical aberration when imaging deep into tissue.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003eThe \u003cb\u003einfinity-corrected optical design\u003c\/b\u003e is compatible with Olympus BX (upright), CX (compact), and IX (inverted) series microscopes, enabling integration with fluorescence filter cubes, DIC optics, and camera systems for advanced imaging workflows.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003eThe \u003cb\u003eRMS thread mount\u003c\/b\u003e ensures compatibility with standard Olympus biological microscope nosepieces.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2 style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003e🔎 Typical Applications\u003c\/h2\u003e\n\u003cul style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003e\n\u003cli\u003eLive-cell fluorescence imaging\u003c\/li\u003e\n\u003cli\u003eNeuroscience and brain slice imaging\u003c\/li\u003e\n\u003cli\u003eElectrophysiology with optical recording\u003c\/li\u003e\n\u003cli\u003eDevelopmental biology and embryo imaging\u003c\/li\u003e\n\u003cli\u003eTissue culture and organoid imaging\u003c\/li\u003e\n\u003cli\u003eMulti-photon microscopy\u003c\/li\u003e\n\u003cli\u003eCalcium imaging and optogenetics\u003c\/li\u003e\n\u003cli\u003eLong-term time-lapse experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2 style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003e📊 Key Specifications\u003c\/h2\u003e\n\u003ctable style=\"font-family: 'Segoe UI Emoji', sans-serif; border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f2f2f2;\"\u003e\u003cb\u003eSpecification\u003c\/b\u003e\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f2f2f2;\"\u003e\u003cb\u003eDetails\u003c\/b\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eN2667600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eMagnification\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e20×\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eNumerical Aperture (NA)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e0.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eWorking Distance\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e3.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eOptical Design\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eUMPLFLN (Universal Plan Fluor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eImmersion Medium\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eWater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eWavelength Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e400–700 nm (visible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eCorrection\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eInfinity-corrected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eField Correction\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePlan (flat-field)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eThread Type\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eRMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eOlympus BX, CX, IX series microscopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eApplication\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eBiological imaging, fluorescence microscopy, live-cell imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003cp class=\"MsoNormal\" style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003e\u003cb\u003eUniversity purchase orders accepted.\u003c\/b\u003e Contact us for volume pricing and institutional procurement options.\u003c\/p\u003e","brand":"Spach Optics, Inc.","offers":[{"title":"Default Title","offer_id":51695555379501,"sku":"N2667600","price":2500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/7965\/8029\/files\/UMPLANFLN20XW_SHOP.jpg?v=1782679205","url":"https:\/\/www.spachoptics.com\/products\/olympus-umplanfl-n-20x-water-dipping-objective","provider":"Spach Optics, Inc.","version":"1.0","type":"link"}