Olympus Plan N 50X Oil Immersion Microscope Objective (PLN50XOI, NA 0.90)

High-magnification oil immersion objective with enhanced resolution and flat-field optics.

• 🔬 50× Magnification, NA 0.90 — Excellent resolving power for fine structural detail.
• 💧 Oil Immersion Design — Enhances light coupling and contrast in high-magnification imaging.
• 🧠 Plan Achromat Optics — Reduced chromatic aberration and a flat imaging field.
• 📏 Short Working Distance (~0.35 mm) — Ideal for high-NA oil objectives.
• ⚙️ RMS Thread Compatibility — Fits most upright biological microscopes with standard objective mounts.

🧪 Product Description

The Olympus PLN 50× Oil Immersion Objective is a precision optical lens engineered for high-magnification microscopy, delivering superior resolution and contrast for detailed biological and clinical imaging. Designed for use with high-quality immersion oil, this objective minimizes refractive index mismatches at the sample interface, significantly improving light transmission and image clarity at high magnifications.

With 50× magnification and a high numerical aperture (NA) of 0.90, this objective excels at capturing fine specimen details that are critical in applications such as histology, cytology, and advanced brightfield microscopy. Its Plan achromat optical design ensures a flat field of view and reduced chromatic aberrations, producing sharp, well-contrasted images across the entire visual field — a key advantage for documentation and analytical work.

The objective’s short working distance (approximately 0.35 mm) is optimized for oil immersion, helping you bring specimens into sharp focus under high NA conditions. Its RMS threaded mount ensures compatibility with a wide range of research and clinical upright microscopes, making it a versatile addition to any optical system.

🔎 Typical Applications

• High-resolution brightfield microscopy
• Histological and cytological studies
• Detailed structural imaging
• Educational and research lab imaging
• Quantitative measurement and documentation

📊 Key Specifications