Excuse me, who can tell me how Canon 500D works and how to set the parameters when shooting people?

There are many methods of composition. Generally divided into open composition and closed composition. Generally, the two composition methods follow the trisection, that is, the subject or eyes are placed in the middle node of the nine squares, which basically conforms to the aesthetic principle of the golden section. Of course, there are many other ways of composition, you can choose according to your own preferences. The above ingredients are traditional but safe. As for the parameters, I personally think they are mainly ISO, aperture, shutter, white balance, exposure compensation and metering mode, which should be decided according to the shooting purpose. For static shooting, under the premise of ensuring the safety shutter, try to use low ISO, which can make the picture more delicate. Generally, large aperture and long focal length can blur the picture elements other than the main characters, making the characters more prominent. Suitable for sugar tablets, spot metering or adding about 2/3 exposure compensation to make people's skin whiter. You don't need too much aperture to shoot landscape figures to ensure that the background picture is equally clear. The adjustment of white balance can warm or cool the tone of the picture, and proper adjustment can make the photo more artistic. You can read more related books or related posts in the forum. I wish every photographer can find spiritual pleasure and physical and mental happiness in photography.