Since childhood he has produced and directed his own films, working on shoestring budgets, and gaining extensive experience being his own DOP, editor and producer. He has also worked on commercial projects such as music videos and commercials. His work on countless film projects has taken him around the world. Recent projects include a documentary about Lemurs in Madagascar and the international eco-action-thriller Mission NinetyTwo. Guido has also been a lecturer for cinematography at the University of Hildesheim, Germany, since 2005.