Microscope objectives designations

Nikon CF Objectives 210mm

Objectives:

  • LWD - Long working distance
  • ELWD - Extra long working distance
  • SLWD - Super long working distance
  • w/corr - With correction collar for coverslip or coating thickness
  • M - Metallurgical objectives (210mm)
  • DI - Interferometry; double beam, Mirau
  • TI - Interferometry; multiple beam, Michaelson
  • MI - Interferometry; multiple beam, Tolansky
  • DIC - Differential Interference Contrast
  • PM - For polarized light; reflected
  • PLAN - Flat field
  • Fluor - High UV transmission
  • PC - Objective used for viewing specimen with polycarbonate surface film layer
  • PMMA - Objective used for viewing specimen with polymethyl methacrylate surface film layer

Eyepieces:

  • CFWN - High eyepoint widefield eyepiece
  • CFUWN - High eyepoint ultra widefield eypiece
  • PM - Eyepiece designation-photomask reticle
  • CM - Eyepiece designation-crossline reticle for polarizing microscope
  • CR - Eyepiece designation-concentric circles for photometer
  • CFS - Eyepiece designation for use with MI and DI objectives