the three pillars of exposure: aperture, iso, shutter speed

APERTURE

F2.8 Aperture setting

F16 aperture setting

1. The human eye.

2. The smaller aperture, the higher f number and the higher aperture the smaller f number.

3. Aperture impacts depth of field because it can make a photographer much more sharper by blurring out the background.

SHUTTERSPEED

High shutter speed

Slow shutter speed

REASONABLE LIGHT

A. Fast

B. Fast

C. Medium

D. Medium

E. Slow

F. Fast

DARK

A. fast

B. fast 

C. medium 

D. medium

E. slow 

F. slow

There are two ways to manually set the shutter speed: Shutter priority mode, where you set the shutter speed and the camera selects the aperture by itself. Manuel mode, where you set both shutter speed and aperture manually. Aperture Priority mode, you set the lens aperture, while the camera sets the shutter speed by itself. 

ISO

 iso: 200

 iso: 3200

1. You can have intensely clear photos depending on iso.

2. When there is plenty of light, you should always use the lowest ISO, to retain the most detail and to have the highest image quality.

3. You should increase the ISO when there is not enough light for the camera to be able to quickly capture an image.