Those stepping out of auto mode will need to learn about three important settings in photography: aperture, ISO, and shutter speed. These are commonly referred to as the “exposure triangle”, as one must achieve a balance between all three factors to achieve a well-exposed image. Today we will be talking about shutter speed, how it affects an image, and how to use it to your advantage.
In order to take a photograph, a camera needs to let light into the sensor. The camera has a shutter, which stops light from reaching the sensor until activated. When a shot is triggered, this shutter will open up and expose the sensor to entering light. The time this shutter stays open is referred to as shutter speed.
How is shutter speed measured?
Shutter speed is typically measured in seconds and fractions of a second. A shutter speed of 1/100 will expose the sensor for a hundredth of a second. Likewise a 1/2 shutter speed will last half a second. You can also leave the shutter open for multiple seconds, which is commonly referred to as a long exposure shot. Most cameras can go down to about 1/4000 of a second and up to about 30 seconds or more.
The effects of manipulating shutter speed
A shorter shutter speed will help “freeze” the moment. This will make for crisper photos, but it allows less time for the sensor to capture light, making the image darker.
A shorter shutter speed will help freeze the moment.