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.

• 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 camera's sensitivity to light.
• ISO adjusts the sensor in the camera that detects an 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.