Photographer Robert Landsburg with his camera (left) and the Nikon F2 Photomic camera he died protecting during the 1980 Mount St. Helens eruption. Landsburg’s story is the subject of the documentary 8:32 AM: The Last Photographs of Robert Landsburg . Image: Courtesy of the Landsburg family

A documentary tells the story of Robert Landsburg, the photographer who died shielding his camera and film while capturing the 1980 eruption of Mount St. Helens, to make sure his final images survived.

Landsburg had been documenting Mount St. Helens, an active volcano in Washington State, U.S., in the weeks leading up to its catastrophic eruption on May 18, 1980.…