Influential cinematographer and social documentarian Haskell Wexler, who won Oscars for his work in both arenas, has died. He was 93, Variety reports.

Wexler’s death on Sunday, December 27 was confirmed with a post on the HaskellWexler.com blog. His son Jeff shared via Facebook that Wexler died “peacefully in his sleep.”

“An amazing life has ended but his lifelong commitment to fight the good fight, for peace, for all humanity, will live on,” Jeff Wexler wrote.

Haskell Wexler won two Oscars for cinematography, for “Who’s Afraid of Virginia Woolf?” in 1966 and for “Bound for Glory” 10 years later. He also picked up an Oscar in 1970 for the short documentary “Interview With My Lai Veterans,” directed with Richard Pearce.

Wexler also wrote, directed and largely financed two feature films, the highly politically charged “Medium Cool” in 1969 and “Latino” in 1985. He also directed 2007’s “From Wharf Rats to Lords of the Docks,” an adaptation of a play about labor leader Harry Bridges and unionization.

“We are deeply saddened by the death of one of our most esteemed board members,” said ASC president Steven Poster of the Cinematographers Guild. “Haskell’s cinematography has always been an inspiration to so many of us not only in the Guild, but in the entire industry.”

His cool, uncluttered but visually distinct style grew out of his years as an educational and industrial filmmaker, which led to his photographing of documentaries such as Joseph Strick’s “The Savage Eye” in 1959. He continued to invest his own money in films that promoted causes because he saw them “as an instrument for social change,” he said.