Complex sentence: Introduced to photography as stills within film-making, Polidori became interested in the "psychological importance of rooms" as metaphors (Gerber-Klein) and purchased his first large-format camera in 1982.
Split into simpler sentences: Introduced to photography as stills in film-making process, Polidori became interested in the "psychological importance of rooms" as metaphors (Gerber-Klein) and gravitated towards photography. He purchased his first large-format camera in 1982.