See also my updated Open Letter to Leica, with comments added as readers respond.
To my Guide and review of the Leica M9 I have added a 50mm f/2 Summicron-M analysis across the aperture range.
The test scene is of the Golden Gate Bridge in San Francisco on a beautiful summer day, because if you have your health, all days are beautiful. Well, it was dreary and cold and windy on this June day, so windy that I was forced to take shelter behind a tree even while wearing a warm down jacket (WM Flash XR).
“The coldest winter I ever saw was the summer I spent in San Francisco” — attributed to Mark Twain.