Olympus SLMPlan N 20X Epi Objective | 0.25 NA Super Long Working Distance, Infinity Corrected

Premium 20× super-long working distance objective — ideal for thick specimens and probe-based measurements.

• 🔬 20× Magnification, NA 0.25 — Balanced resolution and field of view for detailed imaging.
• 📏 Super-Long Working Distance (~25 mm) — Exceptional clearance for thick specimens, probe stations, and in-situ testing.
• 🧠 SLMPLN Optical Design — Delivers flat-field imaging optimized for super-long working distance applications.
• ⚙️ RMS Thread Mount (20.32 × 36 TPI) — Standard threaded mount compatible with upright microscopes.
• ✨ Condition: New — Factory-fresh optics with full performance specifications.

🔧 Product Description

The Olympus SLMPLN20X 20× Objective is a specialized super-long working distance objective engineered for demanding applications requiring exceptional clearance. With an extraordinary 25 mm working distance, this objective is an essential tool for inspecting thick specimens, accommodating probe stations and micromanipulators, and enabling in-situ testing and measurements that would be impossible with conventional objectives.

The super-long working distance of 25 mm is one of the longest available for a 20× objective, providing generous clearance that is critical when working with thick castings, machined parts, circuit boards, or any specimen with significant surface relief. This exceptional working distance also enables the use of probe stations, micromanipulators, and other equipment during observation, making it ideal for in-situ electrical testing, mechanical measurements, and dynamic experiments.

At 20× magnification with a numerical aperture of 0.25, this objective delivers excellent resolution and detail while maintaining the extended working distance. The SLMPLN optical design ensures flat-field imaging with minimal distortion, optimized specifically for super-long working distance applications where maintaining optical performance is challenging.

Compatible with standard upright microscopes via RMS thread mount, this objective integrates seamlessly into industrial, materials science, and research workflows where maximum working distance is essential.

🔎 Typical Applications

• Inspection of thick castings and machined parts
• Probe station and micromanipulator applications
• In-situ electrical testing and measurements
• Circuit board and PCB examination
• Rough surface and fracture analysis
• Materials characterization requiring high clearance

📊 Key Specifications

💼 University Purchase Orders Accepted

Thank you for viewing! Please contact us with any questions about this objective or your specific microscopy requirements.