Nikon LWD 40× / 0.55 Ph2 DL ∞/0–2 WD 2.1 – Phase Contrast Objective Lens
 


 
  Manufacturer:
 
 
  Nikon
 
 

 
  Magnification:
 
 40×
 

 
  Numerical Aperture (NA):
 
 0.55
 

 
  Contrast Method:
 
 Phase Contrast (
 
  Ph2
 
 )
 

 
  Optical System:
 
 Infinity-corrected (
 
  ∞
 
 )
 

 
  Cover Glass Correction:
 
 0–2 mm
 

 
  Working Distance (WD):
 
 2.1 mm
 

 
  Objective Type:
 
 LWD (Long Working Distance)
 

 
  Condition:
 
 Used – excellent condition


 
  Description
 


 This
 
  Nikon LWD 40×/0.55 Ph2 DL
 
 phase contrast objective is designed for high-quality imaging of unstained or low-contrast biological specimens. The
 
  Ph2 phase ring
 
 provides strong phase contrast when used with a compatible
 
  Ph2 condenser annulus
 
 , making this objective ideal for live-cell imaging and routine biological microscopy.


 The
 
  long working distance (2.1 mm)
 
 allows imaging through thicker culture vessels and chambered slides, while the
 
  DL design
 
 supports stable, high-contrast performance across a range of cover glass thicknesses.


 
  Applications
 


 

  

   Phase contrast microscopy (live cells, unstained samples)
  
 
 

  

   Cell culture imaging
  
 
 

  

   Research and teaching laboratories
  
 
 

  

   Routine biological microscopy on Nikon infinity systems