EXPOSURE
OVER EXPOSED
F/22 ; 1/10sec; 70mm
F/4.5 ; 1/25sec; 25mm
So what does overexposed means it is when you allow to much light to reach the sensor and the resulting image is too “light/bright” as you can see you barely can see the face neither the background for it has too much light on it. The camera has to select a combination of aperture and shutter speed to get a decent shot. So if the made a wrong combination or timing the shot or image will either be overexposed or under exposed. But now a days this problem could be fix, using Photo applications like “Adobe Photoshop
UNDEREXPOSED
Underexposure is when not enough light reaches the sensor which results to dark, dull and lifeless image. Basically it’s the opposite of overexposure. Shooting on manual settings, the photographer sometimes sets the wrong settings as you can see the shadows or dark areas will be too dark and featureless other details and information is lost and cant be seen. There is a solution to avoid this problem using a bigger aperture or a slower shutter speed you can have more exposure. You can do this manually or you can use exposure compensation
F/4.5 ; 1/400sec; 25mm
F/22 ; 1/800sec; 70mm
CORRECT EXPOSURE
The correct exposure is achieved by choosing the right combination of shutter speed and aperture. Timing and light is balanced. But in some cameras correct exposure is hard to determine, example you see the place with perfect amount of light yet when you shot it you see the image over expose or under exposed. So it really depends on you shutter speed, aperture, camera mode and timing.
F/22 ; 1/100sec; 70mm
DEPTH OF FIELD
SHALLOW DEPTH
Your subject in front has all the focus while the background is in a blur. You can control this by adjusting, larger apertures and closer subject distances produce a shallower depth of field. As you can see the subject is clear and the background is in a blur.
F/5 ; 1/500sec; 48mm
F/4.5 ; 1/1250sec; 70mm
SANDWICHING
This is the hardest type. You need to focus in a middle subject leaving the front and the back blur or unfocused. The middle part has the focus and you need Timing and speed.
F/8 ; 1/80sec; 40mm
