Photo Mode is a game feature in The Nathan Drake Collection, A Thief's End, and The Lost Legacy.
Exploring photo mode in Drake's Fortune Remastered will reward you with a bronze trophy titled Shoot Some B-Roll For Elena. In Among Thieves Remastered it rewards you with the trophy of the same type titled New Paparazzi in Town. Whereas in Drake's Deception Remastered it is called Photobomb.