The Horse in Motion, as Shown by Instantaneous Photography, J.D.B. Stillman, 1882
Muybridge was involved in motion photography for 15 years. During that time, he used a variety of cameras and setups. These photos feature the track he used around 1880. Muybridge used 24 cameras in a row that could be operated sequentially. This allowd him to capture movement from different angles simultaneously.