Correct posing is done in three ways, also known as the posing triangle. These are shutter speed, aperture, and ISO.Shutter speed determines the amount of time light enters the camera, aperture controls how much light enters, and ISO refers to the sensitivity of the camera to light. The higher the ISO value, the higher the exposure value. To capture high-quality product photos with a smartphone, it is best to have a smartphone with a good camera and apply the above principles.