2. Shift of still photography into motion pictures in the late 19th and early 20th century
3. Photographers who are interested in movement such as Muybridge and Marey are connected to motion picture/movies
4. Interest in grand scenes that had a combination of a totality of the whole, carried away to a distant place, but can also look at close up at details
5. Not only technological but also different ways of seeing, and changes in what people want to see