Olympus SLMPlan N 50X Epi Objective | 0.45 NA Super Long Working Distance, Infinity Corrected

The Olympus SLMPLN 50× Super Long Working Distance Objective is a precision microscope objective designed for applications where extra space between the lens and the specimen is essential. With 50× magnification and a numerical aperture of 0.35, this objective provides detailed imaging while maintaining a notably long working distance of approximately 18 mm, making it especially useful for industrial inspection, materials analysis, and imaging thick samples.

Its Plan Achromat optical design offers excellent flat-field performance with minimized chromatic and spherical aberrations, resulting in consistent clarity and contrast across the entire field of view. The design also delivers high transmission (>90%) in the visible range (400–700 nm), making it ideal for brightfield microscopy and general imaging tasks that benefit from bright, high-contrast images.

The super long working distance is a significant advantage when imaging larger objects, working with auxiliary devices like manipulators or probes, or inspecting nonstandard sample holders. This makes the SLMPLN 50× objective well suited for electronic assembly inspection, materials science, quality assurance labs, and other environments where clearance and image fidelity matter.

Compatible with standard RMS-threaded microscopes, this Olympus objective integrates seamlessly with many upright research microscope stands and inspection systems.