Olympus LMPLANFL N 5x Objective

Premium 5× extra-long working distance objective — ideal for industrial inspection of thick specimens and uneven surfaces.

• 🔬 5× Magnification, NA 0.13 — Wide field of view with excellent depth of field for overview imaging and inspection.
• 📏 Extra-Long Working Distance (22.5 mm) — Exceptional clearance provides maximum specimen safety and accommodates very thick samples or rough surfaces.
• 🧠 LMPLFLN Plan Semi-Apochromat Design — Delivers flat-field imaging with excellent color correction across the visible spectrum.
• ⚙️ RMS Thread Mount — Standard threaded mount compatible with Olympus BX and MX series industrial microscopes.
• ✨ Condition: New — Factory-fresh optics with full performance specifications.

🔧 Product Description

The Olympus LMPLFLN 5× Objective is a high-performance, extra-long working distance objective engineered for demanding industrial microscopy applications. As part of Olympus's Plan semi-apochromat series, this objective combines an exceptional 22.5 mm working distance with 5× magnification, making it an essential tool for inspecting thick specimens, rough surfaces, and samples that require extensive manipulation during observation.

The 22.5 mm working distance is one of the longest available for a 5× objective, providing generous clearance that is critical when working with industrial samples such as thick castings, machined parts, circuit boards, or any specimen with significant surface relief. This extended working distance also dramatically reduces the risk of objective damage from contact with the specimen, protecting your investment in precision optics while enabling confident inspection of challenging samples.

At 5× magnification with a numerical aperture of 0.13, this objective delivers a wide field of view with excellent depth of field, making it ideal for initial specimen survey, large-area inspection, and locating regions of interest before switching to higher magnifications. The combination of low magnification and long working distance makes this objective particularly well-suited for applications requiring specimen manipulation, probe placement, or in-situ testing during observation.

The LMPLFLN optical design ensures flat-field imaging with minimal distortion from center to edge, while the plan semi-apochromat correction delivers excellent color fidelity and chromatic aberration control. This combination makes the objective well-suited for both visual inspection and digital documentation of industrial samples.

Compatible with Olympus BX and MX series industrial reflected light microscope systems via standard RMS thread mount, this objective integrates seamlessly into metallurgical, semiconductor, and materials science workflows.

🔎 Typical Applications

• Inspection of thick castings and machined parts
• Circuit board and PCB examination
• Rough surface and fracture analysis
• Large-area specimen survey and overview imaging
• In-situ testing and probe-based measurements
• Quality control and failure analysis
• Materials science research and characterization

📊 Key Specifications

💼 University Purchase Orders Accepted

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