ZEISS LD PLAN NEOFLUAR 20X LONG-DISTANCE OBJECTIVE Achieve high-resolution imaging with exceptional working distance for thick specimens and experimental access, featuring: 📏 7.4mm working distance for imaging through thick specimens and experimental access 🔬 20x magnification with 0.40 numerical aperture for high-resolution imaging 🌈 LD Plan Neofluar design combining long distance with flat-field correction 🔧 M27 thread mount for Zeiss infinity-corrected microscope systems ⭐ Excellent as-new condition with pristine optical performance 🔧 Product Description The Zeiss LD Plan Neofluar 20x objective is specifically engineered to provide exceptional working distance while maintaining high optical performance, making it essential for applications requiring experimental access or imaging through thick specimens. The "LD" (Long Distance) designation indicates a working distance significantly greater than standard objectives at this magnification, enabling imaging through thick tissue sections, culture vessels, or other preparations where standard objectives would be impractical. At 20x magnification with 0.40 numerical aperture, this objective delivers excellent resolution and light-gathering capability for detailed cellular imaging while maintaining the extended working distance. The Plan Neofluar optical design combines flat-field correction with fluorescence optimization, making this objective suitable for both brightfield and fluorescence applications. The 7.4mm working distance is exceptional for a 20x objective, providing ample clearance for imaging through thick specimens, culture dishes, or microfluidic devices while allowing room for micromanipulators and experimental apparatus. The M27 thread mount ensures compatibility with Zeiss Axio and other infinity-corrected platforms. LD objectives are indispensable tools in applications requiring both high resolution and experimental access including thick-tissue imaging, organoid culture studies, and any application where standard working distances are insufficient. 🔎 Typical Applications Thick-tissue section imaging and cleared tissue microscopy Organoid and spheroid culture imaging Imaging through culture vessels and microfluidic devices Micromanipulation with simultaneous high-resolution imaging Fluorescence microscopy of thick biological specimens Applications requiring experimental access with high magnification 📊 Key Specifications Specification Details Catalog Number 421350-9970 Magnification 20x Numerical Aperture (NA) 0.40 Working Distance 7.4mm Optical Design LD Plan Neofluar (long distance with flat-field correction) Correction Infinity-corrected Thread Mount M27 (Zeiss standard) Condition Excellent as-new (pre-owned) Primary Advantage Exceptional 7.4mm working distance for thick specimens and experimental access University purchase orders are welcomed and accepted. Contact us for institutional pricing and procurement assistance.
