Lighting - 2 -

To illuminate a person in such a way that it makes alike a realistic day light is achieved by a principal light source in angle with regard to the subject. Compared with the natural light it would represent to the Sun.
The second additional light will refill the part of shade created by the first one what for the natural light would be the rebound in the sky. The third light will play an aesthetic complementary paper. That located behind and towards the subject (light of takeoff) it will produce a cut of the figure creating the three-dimensional illusion on having separated the subject of the background.
It is possible to say four basic rules of behavior of the natural light.
1.- there is a dominant source of light.
2.-All the objects provoke a shade and project it in
The same direction.
3.-The angle of the principal light is usually of 30 º to 40 º on
The horizontal plane of the subject.
4.-It is necessary to to observe details in the brilliant zone or of high lights
So much like in the shades or low lighting.
To illuminate with artificial light it is necessary to locate first the principal light that will define the principal shade.
Helped by the exposure meter, the clearest zone will have to be evaluated and if it is up 3 or 4 diaphragms to the darkest area, definitively a fill light will be used on the above mentioned dark zones.
The difference of intensity between the principal light and the fill light determines the proportion of contrast of the lighting.