Miscellaneous Microscope Objective Lens

£10.00£150.00 ex VAT

Refurbished Microscope Objectives for reflected light microscopy

The objective lens

This is the most important single optical component in the system for it fulfills the following criteria

  • Collects light
  • Controls the resolution of the image
  • Controls the magnification of the image.
  • Forms the primary image

The objective lens requires a large numerical aperture at the same time as having a small field of view.

  • The Numerical Aperture (NA) of a lens is a function of the maximum angle of light a lens can accept from the object plane that defines the light collection capability of the lens.
  • The NA can range from 0.05 for low power lenses at 1.4 x up to 0.95 ( the maximum NA for air lenses) for dry lenses at 60x Oil immersion lenses can have an NA of 1.4 for magnifications between 40 and 100x.
  • A nose piece of a typical metallurgical microscope has four objective lenses that are parfocal – ie. all have an equivalent focal plane on rotation of the nose piece.

Available Options:


Location Service 2-2

Additional information


Meiji S. Plan M 40x/0.65, Prior 5x/0.12, Reichert Plan Fluor LWD Epi 20x/0.40, Union MF 80x/0.9, Unitron MPL 5x/0.10