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

Super long working distance 50× Plan Achromat objective for brightfield and inspection imaging.

• 🔬 50× Magnification, NA 0.35 — Strong detail for high-magnification imaging.
• 📏 Ultra-Long Working Distance (~18 mm) — Exceptional clearance for thick samples and tooling.
• 🧠 Plan Achromat Correction — Flat field and reduced optical aberrations for consistent imaging.
• 💡 High Transmission (400–700 nm) — Bright, even illumination throughout the visible spectrum.
• ⚙️ Standard RMS Thread Mount — Compatible with upright research microscopes & inspection stands.

🧪 Product Description

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.

🔎 Typical Applications

• Brightfield and transmitted light microscopy
• Industrial and materials inspection
• Quality control imaging
• Imaging thick or uneven specimens
• Large sample documentation

📊 Key Specifications