40X Microscope Objective Lens for Modular Toolscope MIcroscope, Toolmakers High Magnification Microscope, ZDM-1 & ZDM-3 Depth Measuring Microscopes
When combined with a 10X Eyepiece the total magnification of the system is 400X with a working distance of 0.030", F.O.V of 0.018" & D.O.F. of 0.001"