Looking for new camera system with changing lenses (DSLR or SLD) I find DxOMark also has rating for lenses: http://www.dxomark.com/index.php/Lenses/Camera-Lens-Ratings
What do the results numbers mean?
Can they be compared between systems?
It is strange that the top 10 lenses are either Nikon or Nikon mount? (See link)
Does that mean Nikon have best lenses or is the unit of measure different?
If the unit is different, how to compare? Is there conversion factor?