Aperture, IOS,Shutter Speed Notes

Fundamental of Photography

The Trinity of Photography

Aperture is an opening

The bigger the F number the smaller the opening

The smaller the F number the bigger the opening

The higher the opening the blurrier the background appears 

The lower the opening the sharper the background appears   

Aperture controls the amount of depth of field

Shutter is like a curtain that opens and closes 

To stop the motion of somebody walking, the minimum shutter speed is 1/150

To stop motion of somebody running, the minimum shutter speed is 1/250

Shutter speed controls the amount of motion blur in a photo

IOS

IOS is a setting for your cameras sensitivity of light

ISO adjusts the sensor in the camera that detects an image

Rule of Thumb: 

use a low IOS when there is a lot of light

When shooting with fast shutter speed, you will have to increase IOS if photos come out to dark

When shooting at night, you will have to increase IOS if photos pick up too much light