As nouns, the difference between possession and possessive
is that possession is something that someone possesses, but he does not necessarily have private property rights, while possessive is the possessive case.
photography is a way of making a picture using a camera. a person who makes pictures using a camera is called a photographer. a picture made using a camera is called a photograph or photo. most photography in the 20th century was on photographic film and most in the 21st uses digital cameras.