Aperture, ISO, 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 bigger the opening the blurrier the background appears.

The smaller the opening, the sharper the focus in the background

Aperture controls the amount of depth of field

Shutter Speed:

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

Shutter speed controls the amount of motion blur in a photo


ISO

ISO is a setting for your camera's sensitivity of light.

ISO adjusts the sensor in the camera that detects image.

Rule of Thumb: use a low ISO when there is a lot of light

when shooting with fast shutter speed, you will have to increase ISO if photo come out too dark.

when shooting at night, you will have to increase ISO for the sensor to pick up more light.