How to adjust the aperture and shutter speed according to cloudy weather?

In fact, cloudy days are an excellent time to take portraits. Of course, the weather should not be too dark. Experts say that scattered light is good for portraits. How to adjust the aperture and shutter speed. Most of the time, we only need to adjust the aperture (used to control the depth of field and obtain the effect of background blur). Usually, we choose a large aperture or one or two stops lower than the maximum aperture. When shooting portraits, The choice of telephoto lens should be based on actual conditions. To get good photos, accurate metering is the first priority. Accurate metering and reasonable composition complete the basic steps of a photo. To get an excellent photo, you need to give the photo a certain level of meaning, which depends on your own quality.