Now the question is whether the amount of reduction is such that the difference will be visible. On a well-defined object, photographed up close, it seems that the difference is visible. I am however much less convinced that the difference will be visible when photographing objects that are fractal in nature (such as trees) and from a distance, where effects such as the limited resolution, variations in the density of the air over the distance, diffraction from the lens, might be bigger than the positive effect from MLU, resulting in no visible gain.