{"product_id":"mitutoyo-100x-m-plan-apo-objective-378-806-3","title":"Mitutoyo M Plan Apo 100x Objective (NA 0.70, WD 6mm, Infinity, M26)","description":"\u003cp style=\"font-family: 'Segoe UI Emoji', sans-serif; color: rgb(0,0,0);\"\u003eThe \u003cstrong\u003eMitutoyo M Plan Apo 100× Objective\u003c\/strong\u003e is a premium plan apochromat objective from Mitutoyo’s M Plan Apo series — delivering high-magnification 100× imaging with an exceptional 6mm working distance and plan apochromat correction optimized for visible light. With 6mm of working clearance at 100× — 30–60× greater than standard 100× objectives — this objective enables high-magnification inspection of specimens in fixtures, chambers, and environments where standard objectives cannot reach.\u003c\/p\u003e\n\n\u003cul style=\"font-family: 'Segoe UI Emoji', sans-serif; color: rgb(0,0,0);\"\u003e \n\u003cli\u003e📏 \u003cstrong\u003eLong working distance: 6mm\u003c\/strong\u003e — extraordinary clearance for a 100× objective (standard 100× objectives offer 0.1–0.2mm WD), providing 30–60× more clearance for specimens in environmental chambers, cryostats, vacuum systems, industrial fixtures, and laser processing setups where standard objectives are physically incompatible\u003c\/li\u003e\n\u003cli\u003e🔬 \u003cstrong\u003eNA 0.70, 0.7µm resolving power\u003c\/strong\u003e — high numerical aperture for a long working distance objective, delivering sub-micron resolution for detailed semiconductor inspection, surface analysis, and high-magnification industrial imaging\u003c\/li\u003e\n\u003cli\u003e🌟 \u003cstrong\u003ePlan apochromat (M Plan Apo) correction\u003c\/strong\u003e — Mitutoyo’s highest level of chromatic and spherical aberration correction for accurate, flat-field imaging across the full visible spectrum at 100×\u003c\/li\u003e\n\u003cli\u003e💡 \u003cstrong\u003eVisible light optimized\u003c\/strong\u003e — the standard visible-light version of the M Plan Apo 100×; for NIR\/SWIR applications (silicon wafer through-inspection, Raman spectroscopy, NIR laser), see the M Plan Apo NIR 100× (378-826-15)\u003c\/li\u003e\n\u003cli\u003e♾️ \u003cstrong\u003eInfinity-corrected, M26 thread\u003c\/strong\u003e — compatible with Mitutoyo FS series microscopes and other infinity-corrected systems with M26 nosepieces\u003c\/li\u003e\n\u003cli\u003e🇯🇵 \u003cstrong\u003eMitutoyo quality, made in Japan\u003c\/strong\u003e — precision optical construction for consistent, high-efficiency visible light transmission and long service life\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCatalog number 378-806-3\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003e\u003cstrong\u003e🔧 Product Description\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: 'Segoe UI Emoji', sans-serif; color: rgb(0,0,0);\"\u003eThe Mitutoyo M Plan Apo 100× (378-806-3) is the visible-light version of Mitutoyo’s flagship 100× plan apochromat objective — combining 100× magnification, plan apochromat correction, and a 6mm working distance that is 30–60× greater than standard 100× objectives. The 6mm working distance solves one of the most challenging problems in high-magnification microscopy: how to achieve 100× magnification when the specimen cannot be brought within 0.2mm of the objective front element. This enables high-magnification inspection of specimens in environmental chambers, cryostats, vacuum systems, industrial fixtures, and laser processing setups where standard 100× objectives are physically incompatible. The plan apochromat correction ensures flat-field imaging with accurate chromatic registration across the full visible spectrum, essential for accurate defect documentation and color-based analysis at 100×. At NA 0.70 with 0.7µm resolving power, this objective delivers sub-micron resolution for the most demanding visible-light inspection applications. The dry (air) design eliminates the need for immersion media, making it practical for use in industrial and semiconductor environments. For applications requiring NIR or SWIR transmission (silicon wafer backside inspection, Raman spectroscopy, NIR laser delivery), see the M Plan Apo NIR 100× (378-826-15). Compatible with Mitutoyo FS series microscopes and other infinity-corrected systems with M26 thread nosepieces. Catalog number 378-806-3.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003e\u003cstrong\u003e🔎 Typical Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"font-family: 'Segoe UI Emoji', sans-serif; color: rgb(0,0,0);\"\u003e \n\u003cli\u003eHigh-magnification semiconductor and IC surface inspection at 100× in visible light\u003c\/li\u003e\n\u003cli\u003eDefect analysis and documentation on polished surfaces, thin films, and coatings\u003c\/li\u003e\n\u003cli\u003eHigh-magnification imaging in environmental chambers, cryostats, or vacuum systems\u003c\/li\u003e\n\u003cli\u003eInspection of specimens in industrial fixtures or assemblies requiring 6mm clearance\u003c\/li\u003e\n\u003cli\u003eLaser processing and micro-machining requiring simultaneous visible-light imaging at 100×\u003c\/li\u003e\n\u003cli\u003eAny application requiring 100× magnification where standard working distance is insufficient\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp style=\"font-family: 'Segoe UI Emoji', sans-serif;\"\u003e\u003cstrong\u003e📊 Key Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse: collapse; font-family: 'Segoe UI Emoji', sans-serif; color: rgb(0,0,0);\"\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"text-align:left; padding: 6px; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding: 6px; border: 1px solid #ddd;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003e378-806-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eMagnification\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003e100×\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eNumerical Aperture (NA)\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003e0.70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eImmersion Medium\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eDry (air)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eWorking Distance\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003e6mm (Long Working Distance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eSpectral Range\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eVisible light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eResolving Power\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003e0.7µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eFocal Depth\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003e0.6µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eFocal Length\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003e2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eField of View (Ø24 eyepiece)\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eØ0.24mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eReal FOV (1\/2\" chip camera)\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003e0.05 × 0.06mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eOptical Design\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eM Plan Apo (Plan Apochromat, visible light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eCorrection\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eInfinity-corrected (brightfield)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eThread \/ Mount\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eM26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eMitutoyo FS series; other infinity-corrected M26 systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003eSKU\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border: 1px solid #ddd;\"\u003e378-806-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003cp style=\"font-family: 'Segoe UI Emoji', sans-serif; color: rgb(0,0,0);\"\u003e\u003cem\u003eUniversity and institutional purchase orders are welcome. Please contact us for invoicing and procurement documentation.\u003c\/em\u003e\u003c\/p\u003e","brand":"Spach Optics, Inc.","offers":[{"title":"Default Title","offer_id":51695315222829,"sku":"378-806-3","price":3995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/7965\/8029\/files\/cb7aef0bb500172a6bf6669c9c5303eb.webp?v=1776642822","url":"https:\/\/www.spachoptics.com\/products\/mitutoyo-100x-m-plan-apo-objective-378-806-3","provider":"Spach Optics, Inc.","version":"1.0","type":"link"}