As it says in the first paragraph of this section Light is the raw material of photography. Even though many thing have changed in photography since Mr Henry Fox Talbot discovered the basis of photography in the 1830’s the processes are really the same today. Cameras have got smaller and more advanced and we have changed from film to digital but we still need to get light into the camera through a lens.
It is the amount of light that enters the camera that is important. There are of course many methods in use to regulate this, from the Waterhouse stop (a disc with a hole in the centre first used in the 1950’s) . See Below
To the modern metal irises in say a Nikon or Cannon Lens.
According to David Bailey …
” Light is the tool of the photographer and he must master it before he can call himself a craftsman”
Understanding the quality of light will not only help you take better photographs that are correctly exposed but will help you add atmosphere to each of your shots.
People say that setting the camera to automatic will allow it to make all the correct decisions for you , if only this were the case. As in the words of Bryan Peterson ” Operating in manual exposure mode is empowering”
References & Notes
1. David Bailey’s book of Photography- 1981- isbn 0-046004531-8
2. Understanding Exposure Revised edition Bryan Peterson, 2004 isbn 0-8174-63000-3
3. Basic Photography, George Hughes , 1981, isbn 0-60037252-9