CFI Plan Achromat 100x Water Immersion Objective

The Nikon CFI Plan Achromat 100X Water Immersion is a specialized high-magnification objective engineered specifically for electrophysiology, neuroscience research, and live tissue imaging applications. As part of Nikon's water dipping series, this objective is designed for direct immersion into aqueous solutions without requiring a coverglass, making it ideal for imaging brain slices, organotypic cultures, and other live tissue preparations in physiological buffers. With a high numerical aperture of 1.1 and 100X magnification, this objective provides excellent resolution for detailed cellular imaging, while the exceptionally long 2.5mm working distance provides unprecedented clearance for micromanipulation equipment such as patch-clamp electrodes, microinjection needles, and stimulation probes. The plan achromat optical design provides good flatness of field and chromatic correction for reliable imaging performance. The water immersion design eliminates refractive index mismatches between the objective and specimen, ensuring optimal image quality when imaging deep into aqueous preparations. Compatible with Nikon's CFI infinity optical system, this objective integrates seamlessly with Eclipse FN1 and other upright research microscopes equipped for electrophysiology, making it an essential tool for laboratories conducting patch-clamp recordings, calcium imaging, and neuroscience research requiring high-magnification imaging with exceptional working distance.