When an artist uses scale to indicate the relative importance of elements in a composition, he or she is employing this kind of scale.?

changeable lenses of different focal lengths allows light to enter the camera,which then forms the image on light-sensitive film;

"the idea of humanism is mostly adeptly reflected in renaissance art by a focus on the body itself, especially with sculpture, where many detailed portraits of the human body (such as the david) were created."