The Nikon CFI Plan Apo 20x/0.75 is a premium apochromatic dry objective for all Nikon infinity-corrected microscopes, delivering exceptional flatness of field, chromatic correction, and 0.75 NA at 20x magnification — the gold standard for high-resolution widefield fluorescence, brightfield, and multi-channel imaging at the tissue and cell level. • 🌟 20x / 0.75 NA apochromatic (Plan Apo) — the highest level of chromatic and spherical aberration correction available in a 20x objective• 📍 Plan (flat field) correction — sharp, flat images edge-to-edge for widefield imaging and tiling workflows• ♾️ Infinity corrected, M25 thread — fits all Nikon CFI infinity-corrected microscopes (Eclipse E, Ti, Ni, Ci, and others)• 📏 1.0mm working distance — comfortable clearance for standard coverslipped specimens• 🏭 Genuine Nikon OEM — new condition, made in Japan• 🎓 University purchase orders accepted 🔧 Product Description The Nikon CFI Plan Apo 20x/0.75 is one of the most widely used research objectives in the Nikon CFI lineup, combining apochromatic optical correction with flat field performance at a magnification that balances field of view and resolving power for tissue-level and cell-level imaging. The apochromatic design corrects chromatic aberration across three wavelengths and spherical aberration across two, producing images with exceptional sharpness, contrast, and color fidelity across the visible spectrum — critical for multi-channel fluorescence microscopy where consistent focus across DAPI, GFP, and far-red channels is essential. The Plan correction ensures the image is flat and sharp from center to edge, making this objective ideal for widefield tiling, stitching, and large-area imaging workflows. At 0.75 NA, this objective delivers excellent light collection and resolving power for a dry 20x objective, enabling high-quality fluorescence imaging without immersion media. The 1.0mm working distance provides comfortable clearance for standard coverslipped specimens. The M25 CFI thread mount fits all Nikon infinity-corrected microscope platforms. Supplied in new condition. 🔎 Typical Applications • Multi-channel widefield fluorescence imaging of tissue sections and cell monolayers at 20x• Large-area tiling and stitching workflows requiring flat, sharp images edge-to-edge• Brightfield histology and pathology imaging at tissue level on Nikon Eclipse platforms• High-content screening and automated imaging requiring consistent focus across channels• Replacement or upgrade of 20x objectives on Nikon CFI infinity-corrected microscope systems 📊 Key Specifications Specification Details Manufacturer Nikon Model CFI Plan Apo 20x Magnification 20x Numerical Aperture 0.75 Immersion Medium Dry (Air) Optical Correction Plan Apochromat (Plan Apo) Working Distance 1.0 mm Correction Infinity Corrected Thread Mount M25 (CFI) Compatible Systems All Nikon CFI Infinity-Corrected Microscopes Country of Origin Japan Condition New University and institutional customers are welcome to submit purchase orders. Please contact us for net terms and procurement documentation.
