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.
Fast Max shutter speed: 1/8000s Canon 5DS's 1/8000s 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.
41 Cross Type Focus sensors Cross sensors are more sensitive to light and they lock faster and more precisely.
61 Focus Points In sports photography , you keep continuous autofocus (AFC) mode on for tracking the subject and more focus means better tracking.
Good Battery Life: 700 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 700 shots per charge, you won't run out of juice or have to change battery very frequently in the middle of an event.
Good Low Light ISO A good high ISO performance is very important in sports photography in order to have a fast shutter speed.
Good Ergonomics&Handling With lots of external control and a good ergonomics, Canon 5DS'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.
Anti Flicker feature Many sporting events involve flickering lights that cause unwanted effects on the photos. Anti flicker feature reduces this effect, although generally reduces the maximum continuous shooting speed of the cameras.
Average Continuous Shooting: 5.0fps In the world of sports photography, faster is always better.
No Image Stabilization Due to the lack of sensor based Image stabilization, Canon 5DS users have to rely on lenses with optical IS in order to maximize the sharpness of their sports photography photos. Currently there are native Canon EF mount lenses with Image Stabilization for Canon 5DS.