Nikon BD Plan & M Plan Objective Set 2.5x 10x 20x 40x Apo 210/0 Used

This is a suite of four finite-conjugate microscope objectives manufactured by Nikon. Designed for a 210mm mechanical tube length and zero cover glass thickness (210/0), these are optimized for metallurgical, industrial, and materials science applications where specimens are viewed directly without a coverslip. The set includes one standard brightfield M Plan objective and three brightfield/darkfield (BD) Plan objectives. Notably, the high-magnification 40x objective is a Plan Apochromat (Plan Apo), providing superior chromatic aberration correction and a high 0.80 numerical aperture for demanding high-resolution inspection.

Condition Notes

• Condition: Used.
• Cosmetic Status: Excellent professional condition.
• Housing: The polished metal barrels are clean and display clearly legible engraved text and color-coded magnification rings.
• Optics: Visual inspection of the front elements shows they are physically intact without obvious severe damage to the metal retaining rings.
• Asset Tag: LT768.

Technical Specifications

• Brand: Nikon (JAPAN)
• Optical Tube Length: 210mm (Finite)
• Cover Glass Thickness: 0 (Metallurgical)
• Included Lenses:
• 2.5x: Nikon M Plan 2.5 / 0.075 | 210/0 | Red Ring | SN: 607079
• 10x: Nikon BD Plan 10 / 0.25 | 210/0 | Yellow Ring | SN: 347601
• 20x: Nikon BD Plan 20 / 0.4 | 210/0 | Green Ring | SN: 425234
• 40x: Nikon BD Plan Apo 40 / 0.80 | 210/0 | Light Blue Ring | SN: 141186

Included

• (4) Nikon Microscope Objectives (2.5x, 10x, 20x, 40x)
• Note: Does not include individual hard plastic objective cases