Fast Continuous Shooting: 10.0fps In the world of sports photography, faster is always better.
49 Focus Points In sports photography , you keep continuous autofocus (AFC) mode on for tracking the subject and more focus means better tracking.
Wireless Connection It may not be used by everyone but pro sports photographers use Wi-fi to transfer files simultaneously without having to wait to change the memory card.
Average Ergonomics&Handling although not as good as a DSLR body, Panasonic GX850 is good enough for most conditions.
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.
Slow Max shutter speed: 1/500s Panasonic GX850's max shutter speed of 1/500s is quite slow and it may not be enough to freeze the motion in some cases. Another potential problem may be when you use a fast aperture at very strong light, your camera may overexpose because of slow max shutter speed
Poor Battery Life: 210 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 only 210 shots per charge, you may need to change batteries very frequently in the middle of an event.
No Built-in Viewfinder In the lack of a a viewfinder, holding the camera away from the body while using live view is not very stable, especial with heavy camera bodies and lenses. Besides, LCD screens are very hard to read under bright sunlight.
No Image Stabilization Due to the lack of sensor based Image stabilization, Panasonic GX850 users have to rely on lenses with optical IS in order to maximize the sharpness of their sports photography photos. Currently there are native Micro Four Thirds mount lenses with Image Stabilization for Panasonic GX850.