Greetings everyone. I have a Canon 500D camera. I want to use it as a webcam. I connected the connections to the computer with the capture card. I reflect instantly. However, the machine turns itself off after 30 or 40 minutes. I press the shutter button halfway and the image comes back. I see that the battery is half charged. I disabled the energy saving settings. I also changed it to default settings. Please support me as to what the reason is.