Leica 21mm f/3.4 Super-Elmar-M ASPH Color Uniformity
Just published in my Guide to Leica is a page exploring the non-uniform color across the frame with the 21mm f/3.4 Super-Elmar-M ASPH. I suspect a lens profile error in the M9P firmware, or perhaps a test lens that is a bit outside the norm.
At any rate, all M shooters should be lusting over one of the world’s finest 21mm lenses. I consider it a MUST HAVE for Leica M. See my Leica lens list.
DSLR shooters (Canon or Nikon) will find the Zeiss 21mm f/2.8 Distagon in the same league, and 1/2 stop faster, though far larger and heavier as a DSLR requires.