Light plays a huge part with image results in photography. There are three settings that can be adjusted to change the results of the shot. Aperture and shutter speed affect the amount of light that comes into the camera. The ISO setting is used to brighten photos. ALL three settings adjusted in different ways to create different results.
Understanding Aperture, ISO and Shutter Speed
ISO: Basic ISO setting is 100. A lower ISO value means less sensitivity to light, a higher ISO means a higher sensitivity to light.
Shutter Speed: refers to the speed of that the shutter closes on the camera. A fast shutter speed will create a picture with shorter exposure to light. A slower shutter speed will create a picture with a longer exposure to light. This is a way to control the amount of time a picture will capture light.
What this looks like: Shutter speed set at 1.0 is one second. A basic or safe shutter speed is 1/250, this is good for capturing sharp shots of slow-moving or stationary objects. For fast action settings range 1/1000 or above.
Aperture: refers to the adjustable lens opening that controls the amount of light allowed into the camera. f stands for focal length. A large aperture results in a large amount of foreground and background blur. A small aperture results in a small amount of background blur.
The following pictures are taken within minutes of each other. The difference in settings has created a dramatic difference in photos.
Setting for Photo 1
IOS: 200 Aperture: f/4 Shutter Speed: 1/60
Setting for photo 2:
IOS: 320
Aperture: f/7.
Shutter Speed: 1/125
In the blogs to come we will explore ISO, aperture, and shutter speed in more depth.
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