Teachers who have photography please give me some advice. My machine is Canon 550. How to connect the camera with the computer? The movie camera and the computer are synchronized.

1, the color difference may be a problem with the camera settings you use. You try to change your white balance and exposure compensation, because different environments will change the color temperature, so there will be color cast. Especially at night, why many photos are yellow, but when the temperature is high during the day, the photos will be blue, which is the reason.

2. There should be a data cable in the video. When the camera is connected to the computer, its working state should be in the "storage" state, so it is impossible to shoot at the same time. You can only click to see. So there is no need to connect to the computer to watch. It is very important to set the white balance correctly. The effect on the camera is similar to that on the computer.

3. The background paper will reflect light during your shooting, so the object you shoot will be more reflected by light, which will make your object less shadowed. Highlight your belongings. Cloth is slow reflection, so the effect is not great. Therefore, it doesn't matter whether you import or not. The important thing is that you want it to reflect light. If the cloth is only for your background, it won't help much.