Geoffrey Schaaf is an American director, producer and cinematographer. He is better known for his work on Shelter Island (2003), Candy's Room: Soleil Noir (2011), The Burning Zone (1997), Portal (2009). According to Internet Movie Database he had total of 33 credits as a cinematographer, 3 credits as  director untill 2016.

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https://www.imdb.com/name/nm0769419/