As the focal length gets smaller, we can see the person with a wider range of the surroundings. Since the surroundings include more objects, while the size of the person stays the same, she blocks more details for a shorter focal length.
As the focal length gets smaller, we can see the person with a wider range of the surroundings. Since the surroundings include more objects, while the size of the person stays the same, she blocks more details for a shorter focal length.