Complex sentence: He filmed from the time the presidential limousine turned onto Elm Street for a total of 26.6 seconds, exposing 486 frames of standard 8 mm Kodachrome II 8 mm safety film, running at 18.3 frames per second.
Split into simpler sentences: He filmed from the time the presidential limousine turned onto Elm Street. The sequence contains 486 frames, or 26.6 seconds of Kodachrome II 8 mm safety film, running at 18.3 frames per second.