Product Detail

Zeiss Plan Neofluar 40x Phase Objective

All Axio series w/ RMS objectives

Axio series w/ M27 objectives require adapter


This Zeiss Plan Neofluar 40x/0.75 Ph2 phase contrast objective w/ RMS threads is compatible with all Axio series microscopes.  Plan Neofluar objectives have increased numerical apertures, color correction and flatness for demanding research applications.  PH2 ring in objective pairs with condenser ring for phase contrast.  Objective is in very good condition - does have some minor signs of use on the metal tip.  Optically there are no marks, scratches or delamination on the glass surfaces.  Objective was tested on AxioImager stand with and delivered sharp, crisp image as expected.  

Important Note - Use on current Zeiss microscopes with M27 objectives requires this adapter.  The RMS-M27 adapter is parfocal and parcentric with no other optical drawbacks.  Models which require this adapter are AxioObserver, AxioImager, AxioScope A1, AxioLab A1, AxioVert A1, some models of AxioVert 200.  

All of our used parts are thoroughly cleaned, refurbished and tested by our knowledgeable staff and your satisfaction is guaranteed.  We offer no questions asked returns for 7 days after receipt (less cost of shipping).  All used items carry a 90 day warranty against defects which will be honored with a full refund or replacement with like item.  If you have any questions or would like additional photographs, please email us at  If you do not see the item you are looking for please email us as many times we have inventory we have not yet listed online.  

  • Zeiss p/n 440351-9901
  • Magnification: 40.0x
  • Numerical Aperture: 0.75
  • Working Distance: 0.71mm
  • Correction: Plan Neofluar
  • Infinity optical design (ICS)
  • Coverslip corrected (0.17mm)
  • RMS (0.8") thread
  • PH2

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