Robert Humphreys has shot over 40 films for television and cinema release. He has photographed many influential short films including the multi-award winning Flowergirl and Joy for Cate Shortland, Confessions of a Headhunter for Sally Riley, Unit 52 for Tony Krawitz and Delivery Day for Jane Manning. He shot his first feature film Mullet in 2000, which was nominated for 5 Australian Film Institute awards, and he was awarded a Gold Award for cinematography at the 2001 ACS (New South Wales + Australian Capital Territory) Awards for Cinematography.

In 2001 Robert shot the feature film Walking on Water, staring Vince Collosimo, which won the Teddy Award and The Readers Prize of the Siegessaule at the Berlin International Film Festival in 2002. He reunited with Cate to shoot the feature Somersault in 2003.