Nikon CFI S Plan Fluor 60X ELWD Objective

The Nikon CFI S Plan Fluor 60X ELWD is a specialized high-magnification objective engineered for applications requiring extended working distance at 60X magnification. As part of Nikon's S Plan Fluor series, this objective combines advanced fluorite optical elements with an extra-long working distance (ELWD) of 1.8–2.6mm, providing exceptional clearance for thick specimens, culture vessels, microplates, and samples requiring manipulation. The fluorite glass elements significantly reduce chromatic aberration compared to standard achromat objectives, ensuring accurate color reproduction and improved contrast—particularly valuable in multi-channel fluorescence imaging and live cell observation. With a numerical aperture of 0.70, this objective provides excellent resolution for detailed cellular imaging, while the extended working distance enables imaging through plastic culture vessels, thick tissue sections, and other challenging specimens without immersion media. The plan optical design ensures exceptional flatness of field across the entire image, delivering edge-to-edge sharpness critical for digital imaging and quantitative analysis. Compatible with Nikon's CFI infinity optical system, this objective integrates seamlessly with Eclipse, Ti, and Ni series research microscopes, making it ideal for laboratories conducting live cell imaging, high-content screening, and fluorescence microscopy requiring extended working distance.