Sven Nykvist, the longtime collaborator of Ingmar Bergman, also informed much of his photography with chiaroscuro realism, as did Gregg Toland, who influenced such cinematographers as László Kovács, Vilmos Zsigmond, and Vittorio Storaro with his use of deep and selective focus augmented with strong horizon-level key lighting penetrating through windows and doorways. Much of the celebrated film noir tradition relies on techniques Toland perfected in the early thirties that are related to chiaroscuro (though high-key lighting, stage lighting, frontal lighting, and other effects are interspersed in ways that diminish the chiaroscuro claim).