[Leica] Loss of Red Dot

[Rolf Katzenstein <rgk@farmington.com>]

I had to throw my Noctilux away after the dot fell off. It would not focus
accurately anymore. No more depth of field at f1.0. Apparently the red dot
keeps the nitrogen charge in place and the nitrogen is critical to focus. I
was relieved to find that out before I wasted any more film. After giving me
the explanation, the guy at Cambridge was kind enough to dispose of it for
me. Now I put some superglue around each red dot.