With the automatic exposure, the camera’s metering system detects changes in lighting or composition and adjusts the exposure, leading to variations in brightness. The camera will adjust its exposure based on where it focuses or meters the light. If you tap on different areas of the screen to focus, the camera will change the exposure settings.
Due to variations in the shooting angle, the image processing algorithm receives different inputs, resulting in differences in the final images. Please maintain a consistent shooting angle to achieve the same results in your photos.