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 will always be a fraction
Shutter speed
Shutter is like a curtain
To stop the motion of somebody walking, the minimum shutter speed is 1/150
To stop the motion of somebody running, the minimum shutter speed is 1/250
Shutter speed controls the amount of motion blur in a photo
ISO
ISO is a setting for your cameras sensitivity to light
ISO Adjusts the sensor in the camera that detects the 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 photos come out too dark
When shooting at night, you will have to increase ISO for the sensor to pick up more light
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