Fast Max shutter speed: 1/4000s Leica S2's 1/4000s shutter speed is fast enough to freeze any almost all sports action and is also helpful when you use a fast lens at largest aperture under bright sunlight.
Good Battery Life: 1000 shots In most sports events, you shoot at high speed for a long time and this drains the battery pretty quick. With a battery life of 1000 shots per charge, you won't run out of juice or have to change battery very frequently in the middle of an event.
Good Ergonomics&Handling With lots of external control and a good ergonomics, Leica S2's body is very good for sports photography.
Optical Built-in Viewfinder During a sports shoot, using a viewfinder allows the photographer to stabilize the camera and reduce the camera shake since it is closer to the body. Besides, it comes handy where LCD screens are very hard to read under bright sunlight.
Slow Continuous Shooting: 2.0fps In the world of sports photography, faster is always better.
Environmental Sealings Most outdoor sports games are held in all-weather, so your camera has to be ready for difficult conditions such as rain and snow. Exposure to dust and water splashes are also very common in sports.
Focus Points In sports photography , you keep continuous autofocus (AFC) mode on for tracking the subject and more focus means better tracking.
No Image Stabilization Due to the lack of sensor based Image stabilization, Leica S2 users have to rely on lenses with optical IS in order to maximize the sharpness of their sports photography photos. Currently there are native Leica S mount lenses with Image Stabilization for Leica S2.