The M stands for Messsucher, the German term for a combined rangefinder and viewfinder, and for an unmistakably individual kind of photography.
It can be a profound action, taking a photograph. It's a piece of realisation. The preservation of a fleeting expression. A recording, even, of the precise moment the world changed.
But what if your camera's action is less than precise, less than perfectly responsive? The consequence could be profound, too.
The moment could escape.