Spach Optics, Inc.

EcoView Plan 40X Long Working Distance Objective - 2.9mm WD

Regular price $185.00

SKU: EV40XLM

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EcoView Plan 40X Long Working Distance Metallurgical Objective

  • πŸ”¬ 40X Plan Achromat β€” flat-field correction for uniform sharpness across the full field
  • πŸ“ NA 0.60 / WD 2.90mm β€” strong resolving power with generous long working distance for metallurgical clearance
  • ♾️ Infinity corrected β€” compatible with modern infinity optical systems and tube lenses (180mm focal length)
  • πŸ”© RMS thread β€” standard thread for broad microscope compatibility
  • 🧰 Dry objective / no cover glass (0) β€” designed for direct surface inspection without immersion media or coverslip
  • βœ… Condition: NewΒ 

πŸ”§ Product Description

The EcoView Plan 40X is a Plan Achromat metallurgical objective built for mid-to-high magnification surface inspection and materials analysis. At 40X with an NA of 0.60 and a working distance of 2.90mm, it delivers excellent resolving power while maintaining the clearance needed for safe examination of polished, etched, or rough industrial surfaces β€” a working distance that is notably generous for a 40X objective.

The Plan Achromat correction ensures a flat, well-corrected field across the visible spectrum β€” critical at 40X where field curvature in uncorrected objectives becomes increasingly apparent. The infinity-corrected optical design (180mm tube lens focal length) integrates cleanly with modern metallurgical and industrial microscope platforms, and the standard RMS thread makes it a straightforward drop-in for a wide range of nosepieces.

Designed as a dry objective with no cover glass requirement (0), it is optimized for direct surface imaging of metals, ceramics, semiconductors, and other opaque or polished materials. The polished chrome finish is consistent with professional-grade metallurgical objectives.


πŸ”Ž Typical Applications

  • Metallurgical grain structure and microstructure analysis
  • Semiconductor wafer and die surface inspection
  • Ceramics, coatings, and composite materials examination
  • Failure analysis and quality control on polished or etched surfaces
  • Replacement or upgrade 40X objective on RMS-threaded metallurgical microscopes

πŸ“Š Key Specifications

Specification Details
Part Number EV40XLM
Manufacturer EcoView
Objective Type Plan Achromat (L Plan)
Magnification 40X
Numerical Aperture (NA) 0.60
Working Distance (WD) 2.90mm
Optical System Infinity corrected
Tube Lens Focal Length 180mm
Parfocal Distance 45mm
Immersion Medium Dry (no immersion)
Cover Glass None (0)
Thread RMS Standard
Finish Polished chrome / silver
Country of Origin China
Condition New

πŸ“‹ University and institutional purchase orders accepted. Contact us with any questions β€” we're happy to help you find the right metallurgical objective for your application.

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