Like the other two, the exposure triangle also has an essential element: shutter speed. This element has a significant role in two things. Such as changing the brightness of the photo and creating a dramatic effect using a freeze or motion blur.
This element is basically like a curtain in front of the camera sensor. It will remain closed until the camera is on. When the camera is on, the shutter will be open, exposing the camera sensor to the light coming through the lens.
When the sensor collects the light, the shutter will close and then stop the light. This is to prevent the sensor from being exposed to sunlight. To better understand shutter speed, here is a review of the definition, background, and how it works.
Definition of Shutter Speed
Shutter speed is when the camera shutter opens and then exposes light to the sensor. Generally, this shutter indicates how long the camera captures the photos.
You can take the measurements as well. The measure is usually in a split second. For example, 1/4 means a quarter of a second, and 1/250 means one-two hundred and fifty seconds.
Advanced DLSR cameras can handle shutter speeds as fast as 1/4000 second. Some of those are even quicker, for about 1/8000 second.
Background of Shutter Speed
Just like the two other elements, aperture, and ISO, if you use a shutter, you will get a different background or foreground. You can see the difference through:
1. Background/face ground with freeze effect
To get the freeze effect, you can use the high shutter. It will produce an image with dynamic and transparent. Because using this technique will make a camera able to capture the moving objects excitedly.
For example, you want to take photos of people playing a ball on the beach. Then the result of the images will show you that the whole movement, including flying sand, will be caught clearly. You can see the freeze effect in the flying sand and the person who jumps or kicks the ball.
2. Motion blur in the background or faceground
If you want to get a photo with motion blur, you can use a low shutter speed. A quiet shutter is perfect for taking an image in the dark—for example, a photo of a vehicle running at night.
This photo shows long traces through the front and rear lights of the running vehicle. The motion blur will look smooth, just like a mild effect for those who see the photo.
The Working Principle of Shutter Speed
Understanding the shutter speed’s working principle is an introductory camera lesson. You need to know this cause it will help you to adjust the shutter optimally. Thus, you can get a great image. The working principle of the camera shutter, such as in mirrorless, is that the shutter speed always will be open when you turn the camera on.
So that the camera will show a preview of all the objects you will take, the shutter closes for a while when you press the photo button. It will make the sensor prepare to take photos. Then the shutter will open and let the light enter the detector. Next, the shutter will close again to cut off the incoming light.
The longer shutter speed will cause more light enters the sensor. It will make you get a very bright photo. Otherwise, the sensor will receive a low light if you set the shutter quickly. You will get a dark picture.
By understanding how the shutter works on the camera, you can get creative photos, especially when you combine it with two other essential elements in the exposure triangle. Indeed, you will get a unique and perfect picture.
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