Come in, master! ! ! Excuse me, how to set a SLR camera in a sports competition under the night light, provided that it can't flash, such as badminton at night!

You are right to try to improve ISO. Your speed is 1/300s, and the photo is blurred to 1/200s, which is slightly clear. The most important reason is that your focus has not kept up with the main body. Also, you should give priority to speed. If the speed is fast, the aperture will be larger and the depth of field will be shorter. A slight deviation in your focus will cause the problem you said. Whether your device supports dynamic photography, you should first give priority to the speed of the camera. It is also important to switch to sports mode, that is, follow the focus and continuous shooting, and the continuous shooting speed of your camera can be several times per second. Then there is your experience, which requires long-term practice. I hope this will help you. You'd better read more books about the details. You need to know your own equipment, such as how much noise will be generated when the ISO value of your camera increases, how much noise will affect the photo quality, the continuous shooting speed of the camera, the focusing speed of the lens, and how much the different direction of your subject will affect the shutter speed. Work hard! ! !