Olympus LUCPLANFL N 20x Phase Contrast Objective

The Olympus LUCPLANFL N 20X long working distance phase contrast objective is specifically engineered for high-resolution phase contrast microscopy with exceptional working distance and correction collar capability. The LUCPLANFLN (Long Universal Plan Fluorite) optical design combines plan (flat-field) correction with fluorite elements and extended working distance, delivering exceptional image flatness across the entire field of view with superior chromatic aberration correction. The integrated correction collar enables optimization for cover glass thickness from 0 to 1.6mm, compensating for spherical aberration introduced by varying cover glass thickness. This ensures optimal image quality across different specimen preparation methods. At 0.45 numerical aperture with 6.6-7.8mm working distance, this objective provides excellent resolution while maintaining exceptional clearance for thick specimens, culture vessels, and micromanipulation. Phase contrast microscopy enhances contrast in transparent, unstained specimens by converting phase shifts in light passing through the specimen into amplitude changes. The RMS thread ensures compatibility with Olympus BX, CKX, and IX series infinity corrected microscope systems. Factory-new condition ensures optimal imaging performance for demanding research and laboratory applications.