Genuine Nikon BD Plan 20x 0.4 ELWD Microscope Objective - 210/0 Made in Japan

Up for sale is a premium Nikon BD Plan 20x metallurgical microscope objective lens in excellent cosmetic and operational condition. This specialized Extra Long Working Distance (ELWD) objective is highly sought after for industrial inspection, semiconductor failure analysis, and material science applications where extra physical clearance above the specimen is critical.

Product Specifications and Designations:

• Brand: Nikon

• Model Line: BD Plan 20x ELWD

• Magnification: 20x

• Numerical Aperture (NA): 0.4 (0.40)

• Working Distance Type: ELWD (Extra Long Working Distance)

• Tube Length Standard: 210mm (Finite corrected system)

• Cover Glass Correction: 0mm (Designed for bare, opaque surfaces)

• Illumination Compatibility: BD (Brightfield / Darkfield) dual-channel barrel configuration

• Thread Mounting Size: M26 x 0.75mm (Nikon BD metric thread standard)

• Country of Manufacture: Japan

Item Condition:

• Optics: Excellent condition. Both the front and rear glass elements are remarkably clean, clear, and free from optical delamination, fungus, or heavy haze. The internal optical path shows great clarity.

• Cosmetics: The bright chrome barrel housing is in beautiful, clean shape with minimal handling marks. All factory lettering and text markings are crisp, bright, and completely legible.

This objective is perfectly optimized for legacy industrial platforms like the Nikon Optiphot, Epiphot, and specialized wafer probe stations. Please review all high-resolution photos for an exact look at the pristine physical condition of the lens element and thread mounts.

Shipping and Handling:

Packed securely using professional optical handling standards and specialized protective padding to ensure flawless transit. Fast domestic shipping with full tracking provided.