Aperture, Shutter Speed, and ISO

Aperture

F2.8

F20

1. We closely relate aperture to the human eye.

2. The smaller the aperture the less light gets in, the higher the aperture the more light gets in.

3. When the aperture is smaller and letting in less light the more of the photo is in focus. When the aperture is bigger in more light is let in the the background get out of focus and only the object in the foreground in in focus.

Shutter Speed

 Fast

Slow

a) 1/25th
b)1/25th
c)1/1000th
d)1/250th
e)1/250th
f)1/1000th
Aperture Priority: You set the lens aperture but the camera automatically sets the shutter speed.
Shutter Priority: You set the shutter speed but the camera automatically sets the aperture.
Manual: You set the shutter speed and the aperture.

ISO

 ISO 200

ISO 6400

1) The advantages of shooting at a higher ISO during a sporting event is because there is not as much light and you still want to freeze the image.

2) You should use a low ISO when there is plenty of light or if your camera is on a flat surface or tripod.

3)You should use a high ISO when there is not as much light or you want to get ultra fast shots.

DSLR Camera

Aperture Settings: 2.8, 4, 5.6, 8, 11, 16, 22

Shutter Speed Settings: 1 sec, 1/60 sec, 1/4000 sec

ISO Settings: 100, 200, 400, 800, 1600, 3200, 6400, 12800, 25600