Nikon CFI Plan Fluor 40x Objective

The Nikon CFI Plan Fluor 40x objective is specifically engineered for superior fluorescence microscopy performance, combining high transmission characteristics with exceptional flat-field correction. The "Plan Fluor" designation indicates Nikon's fluorescence-optimized plan series, featuring specialized optical coatings and low-fluorescence glass formulations that maximize light transmission from ultraviolet through visible to infrared wavelengths while minimizing autofluorescence. This high transmission is essential for fluorescence microscopy where every photon counts, enabling detection of weak fluorescence signals and improved signal-to-noise ratios. At 40x magnification with 0.75 numerical aperture, this objective delivers excellent resolution and light-gathering capability for detailed cellular imaging and high-resolution visualization of fluorescently labeled specimens. The exceptional flat-field correction ensures sharp, distortion-free images across the entire field of view, critical for digital imaging and photomicrography where peripheral image quality is as important as central resolution. The 0.66mm working distance provides adequate clearance for standard microscope slides with #1.5 coverslips. The CFI (Chrome-Free Infinity) optical system eliminates environmentally harmful chromium from lens coatings while maintaining superior optical performance. The M25 thread mount ensures compatibility with all Nikon infinity-corrected microscope platforms. This objective is the ideal tool for fluorescence microscopy, multi-color immunofluorescence, live-cell imaging, and any application demanding superior fluorescence performance with flat-field correction.

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