Fundamental of Photography The Trinity of Photography Aperture is 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 the motion of somebody running , the minimum shutter speed is 1/1250 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 photos come out too dark. When shooting at night, you will have to increase ISO for the sensor to pick more light.