Open the Object Properties dialog for Object 3 and place an AR coating on both the front and back faces of the corrector.  This is a single-layer MgF₂ coatings optimized for the current primary wavelength.



When the coatings have been applied, re-run a NS ray trace and save the rays to a different file name.



Once the ray trace is complete, make sure that the appropriate .ZRD file is selected in the Detector Viewer and apply the same ghost filter, G3.  By coating the corrector lens, we have effectively eliminated the spurious "ring" of rays and reduced the total "ghosted" energy by an order of magnitude.