What is the working distance for the Microscope lenses 1x, 2.5x,4x for the SCxxxx systems

What is the working distance for the Microscope lenses 1x, 2.5x,4x for the SCxxxx systems

 

What is the working distance for the Microscope lenses 1x, 2.5x, 4x for the SCxxxx systems?


Here are some optical data for SCxxxx microscopes:

 Objective  Working dist F# of
Object Side   
 Depth of Field
+/- in microns
 4 X   12.7mm      0.66  3.4848
 2.5 X  25.4mm   0.94  7.0688
 1 X  60.3mm  2.4  46.08