I'm obsessed with filming. 
Cinematograpy is awesome!  It is the science or art of motion-picture photography by recording light or other electromagnetic radiation
How do cinematographers record light? 
They typically do it electronically by means of an image sensor, or chemically by means of a light-sensitive material such as film stock.
Where does the word cinematography come from?
The actual word "cinematography" was created from the Greek words "kinema", meaning "movement, motion" and "graphein" which means "to record"
Why were films only made in black & white during the early days?
well as for entertainment purposes and mass communication.
History.
History Precursors.
In the 1830s, moving images were produced on revolving drums and disks, with independent invention by Simon von Stampfer (stroboscope) in Austria, Joseph Plateau (phenakistoscope) in Belgium, and William Horner (zoetrope) in Britain.
In 1845, Francis Ronalds invented the first successful camera able to make continuous recordings of the varying indications of meteorological and geomagnetic instruments over time. The cameras were supplied to numerous observatories around the world and some
Cinematography
Cinematography (from ancient greek κίνημα, "kìnema" "movement" and γράφειν, "gràphein" "to write") is the science or art of motion-picture photography and filming either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as film stock.
Cinematographers use a lens to focus reflected light from objects into a real image that is transferred to some image sensor or light-sensitive material inside a movie camera. These exposures are created sequentially and