1) The document discusses how lenses can manipulate space in cinema by warping, distorting, stretching, and flattening depth perception.
2) Wide angle lenses provide a wider field of view and exaggerated depth, bending space, while telephoto lenses provide a narrower view and compressed depth.
3) Focus and depth of field techniques like deep focus, soft focus, shallow focus, selective focus and rack focus also influence the perception of space in film.