INFORMATIONS

1) EXPOSURE

is the unit of measurement for the total amount of light permitted to reach the electronic sensor during the process of taking a photograph. The two main controls your digital camera uses to control exposure are the shutter speed and aperture.

2) APERTURE

 is the unit of measurement that defines the size of the opening in the lens that can be adjusted to control the amount of light reaching the film or digital sensor. The size of the aperture is measured in F-stop. See also shutter speed.

3) SHUTTER SPEED 

 shutter speed or exposure time is the length of time when the film or digital sensor inside the camera is exposed to light, also when a camera's shutter is open when taking a photograph. The amount of light that reaches the film or image sensor is proportional to the exposure time

4) COMPOSITION

composition is the placement or arrangement of visual elements or 'ingredients' in a work of art, as distinct from the subject. ... The term composition means 'putting together' and can apply to any work of art, from music to writing to photography, that is arranged using conscious thought.

5) RULE OF THIRD

The rule of thirds is a "rule of thumb" or guideline which applies to the process of composing visual images such as designs, films, paintings, and photographs

6) DEPTH OF FIELD

Depth of field is the distance between the closest and farthest objects in a photo that appears acceptably sharp. Now your camera can only focus sharply at one point. ... In a photograph with a narrow DoF, only a small slice of the image is in focus. Conversely, with a large DoF, much more of the scene is sharp.

7) BALANCE

Balance is a compositional technique in photography that juxtaposes images within a frame so that the objects are of equal visual weight. When different parts of a photo command your attention equally, perfect balance is achieved