4. lens shifted by the difference of the ALF memory Z heights.
1. When the ALF is disabled from the RCP and the lenses are changed from from the software Ti Pad the ALF correction is being applied. This is not a major issue.
2. When the ALF is on, the lens is bought to the original Z position, then the corrected by the difference in ALF positions. This results in the lens ramming the sample for certain combinations (eg 40X 1.0 to 60X).