(disabled in spectrum mode) If this
box is unchecked, the display will (on zoom stage 1.0) display
one scan pixel in one screen pixel. This will stretch the
image compared to the real sample if the pixel sizes (scanning
step sizes) in X and Y are different. If the True
Aspect Ratio box is checked, the Y direction will be
stretched or compressed to make the X and Y pixel size equal
on the display. In this case, the zoom value will be true only
for the X direction.
Note: If the True Aspect Ratio box is unchecked and the
pixel size in X and Y are different, the scale bar below the
image will be correct only for the X direction. If the box is
checked, the scale bar will be correct for both dimensions.