What camera is used for sports photography? I often shoot badminton games, but the lighting is not good, I can't use flash, the shutter speed is fast, and I can only use high ISO.

Sports photography, of course, sports journalists had better use Canon Mazi 4 or Nikon D3s, both of which are 102400, and continuous shooting is also a machine gun. In contrast, the full-size D3s is more attractive. Now there are more than 28,000 parallel imports, which are slightly cheaper than Mazi 4. I think both of them are valuable.

7D continuous shooting is good, but high sensitivity is really not good, 5DII is better than 7D, but continuous shooting is not good, and the focus is too far, so sports photography is not needed at all. You can either consider Nikon D700 and continuous shooting, but at least the focus is good and the high sensitivity is OK.