Olympus Plan N 100X Oil Immersion Microscope Objective (PLN100XO, NA 1.25, Infinity)

The Olympus PLN 100× Oil Immersion Objective is a high-power microscope objective designed for detailed exploration of cellular and sub-cellular structures in brightfield, darkfield, and fluorescence microscopy. With 100× magnification and a high numerical aperture (~1.25), this objective provides excellent resolving power, delivering crisp, high-contrast images that are essential for advanced biological, clinical, and materials science applications.

Oil immersion objectives like this one are engineered to match the refractive index of glass, which reduces light refraction at interfaces and enhances both resolution and contrast, especially at high magnifications. The Plan Achromat optical design further improves image quality by minimizing chromatic and spherical aberrations, maintaining sharpness across the field of view.

The short working distance of approximately 0.15 mm is typical for high-NA oil lenses and supports detailed imaging of thin specimens mounted under cover slips. This tight working space maximizes optical performance while enabling clear observation of fine details.

Compatible with standard microscope systems using RMS threaded mounts, the Olympus PLN 100× Oil Immersion Objective is a reliable choice for laboratory workflows where robust optical performance and clarity are priorities.