{"product_id":"zeiss-a-plan-20x-0-45-rms-thread-size-microscope-objective-obj-000-206","title":"Zeiss A-Plan 20x\/0.45 RMS Thread Size Microscope Objective","description":"\u003ch2\u003eZeiss A-Plan 20x\/0.45 RMS Thread Size - 44 10 40 (Used)\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eZeiss A-Plan 20x\/0.45\u003c\/strong\u003e is a high-quality **achromatic objective** designed for **brightfield microscopy**. With a **numerical aperture (NA) of 0.45**, this objective provides excellent resolution, contrast, and flat-field correction, making it ideal for **routine laboratory use, pathology, and biological research**. The **RMS thread size** ensures compatibility with Zeiss and other RMS-compatible microscopes.\u003c\/p\u003e\n\n\u003ch3\u003eCondition\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eRefurbished\/Used\u003c\/strong\u003e\u003cbr\u003e\n\u003cem\u003e(This product has been inspected and verified to meet manufacturer specifications.)\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eIncluded Items\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eZeiss A-Plan 20x\/0.45 Objective\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e20x magnification\u003c\/strong\u003e for high-resolution imaging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlan Achromatic (A-Plan) optics\u003c\/strong\u003e for enhanced contrast and color correction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumerical aperture (NA) of 0.45\u003c\/strong\u003e for improved light transmission\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRMS thread size\u003c\/strong\u003e for compatibility with Zeiss and other standard microscopes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlat field correction\u003c\/strong\u003e for sharp, edge-to-edge imaging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized for brightfield microscopy\u003c\/strong\u003e with high transmission coatings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrightfield microscopy\u003c\/li\u003e\n  \u003cli\u003eRoutine laboratory imaging\u003c\/li\u003e\n  \u003cli\u003ePathology and histology\u003c\/li\u003e\n  \u003cli\u003eBiological and clinical research\u003c\/li\u003e\n  \u003cli\u003eEducational use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n  \u003ctr\u003e\n    \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003cth\u003eDetails\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eMagnification\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e20x\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eNumerical Aperture (NA)\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e0.45\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eWorking Distance\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e~2.0 mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eImmersion Medium\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eAir (Dry)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eCover Glass Thickness\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e0.17 mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eOptical Correction\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003ePlan Achromatic (Flat Field, High Contrast)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eRMS (0.8\" \/ 20.32mm diameter, 0.706mm pitch)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eParfocal Distance\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e45 mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eCompatible Microscopes\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eZeiss Axioscope, Standard, and other RMS-compatible models\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eSpecial Features\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eHigh contrast and resolution, optimized for brightfield applications\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n","brand":"Copia Scientific","offers":[{"title":"Default Title","offer_id":45901345456382,"sku":"OBJ-000-206","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/7860\/5310\/files\/Zeiss_A-Plan_20x_-_OBJ000206_-_1-Photoroom_b49774cb-39a4-4992-b331-273916c7297e.png?v=1774687084","url":"https:\/\/coastalmicroscopes.com\/products\/zeiss-a-plan-20x-0-45-rms-thread-size-microscope-objective-obj-000-206","provider":"Coastal Microscopes","version":"1.0","type":"link"}