His son Thatcher Drew confirmed he died yesterday morning at his home in Sharon.
Starting in 1960 with "Primary," Drew produced and sometimes directed a series of television documentaries that took advantage of such innovations as light, handheld cameras that recorded both sound and pictures. With filmmakers newly unburdened, nonfiction movies no longer had to be carefully staged and awkwardly narrated.
"Nonfiction filmmakers were afflicted by two problems, one technical, the other spiritual," Drew once said.
"Technically, they did not have the equipment to do the sort of work I had in mind. Spiritually, they didn't care about the work because they'd been mistrained. They'd been mistrained because their equipment was so heavy and complicated that it made it impossible to shoot in situations where you could really capture reality."
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Drew's dozens of films included "The Chair," a 1963 documentary about a death penalty case in Illinois, and "784 Days That Changed America: From Watergate to Resignation," winner in 1982 of a Peabody award. Many of his movies were edited and co-produced by his wife, Anne Drew, who died in 2012.
"I wondered why documentaries on television were dull," he told The New York Times in 2013. "I had no doubt we could make a lighter camera, and I started with that premise and started finding people who could do that.