Tuesday, September 15, 2015

Aperture, ISO, Shutter Speed Notes

Fundamentals 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 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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