The study of nature beauty and art was originally a branch of philosophy called

ANSWER: Aesthetics

EXPLANATION: Aesthetics is a branch of philosophy that explores the nature of art, beauty and taste. More technical perspective, it can be called as the study of subjective and sensori-emotional values which are also sometimes called judgements of sentiments and tastes.

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