How to take photos of the basketball match in the gymnasium?

You can't shoot sports games with the aperture first! If the light is strong, it will be fine. In the case of general light, speed gives priority to shooting sports games, and a higher shutter speed is used to solidify the moment. If the maximum aperture of your lens is not large enough, you can only increase the sensitivity as much as possible, which will affect the clarity of enlarged photos, but it is better than blurring.

In addition, the wide-angle end of most friends' lenses is several orders of magnitude larger than the maximum aperture of the telephoto end. It is suggested to shoot with a short focal length as far as possible, so that the camera can provide the maximum aperture and the minimum sensitivity to improve the definition.

Shutter speed depends on the speed (or intensity) of relative motion, but generally it cannot be less than 1/250. The higher, the safer. Try to take more photos.