Photos in motion (Photo by Martin Pettitt )

What would you do if you wanted to take the following pictures?

  • Motorcycle is driving at high speed
  • Cat is chasing a toy mouse
  • The streets are busy at night

The answer is——take good control of your shutter speed . If it is a normal DC, you need to adjust to manual mode. If it is a higher order DC or DSLR, a simple method is to use shutter-priority mode (Shutter-priority Mode).


Control the shutter with S-MODE / Tv-MODE

In S-MODE, all you can control is the shutter speed. There are two main uses for shutter speed:

  1. Fast shutter speed
    A fast shutter speed (such as: 1/4000 second) can “freeze” objects in motion and stop moving things in a flash, such as a sports car in a race, dripping water, etc.
  2. Slow shutter
    A very slow shutter (for example: 5 seconds) can record things that happen over a period of time, such as flowing rivers, busy streets, etc.

Points to note for slow shutter and fast shutter

Fast shutter , because the opening time is relatively short, so it can absorb less light than normal (please refer to the formation of photos), so in order to avoid underexposed, you must pay attention to the aperture is large enough. But as the aperture is large, it will affect the depth of field (please refer to the article on the relationship between aperture and depth of field), so sometimes we need to use a higher ISO or directly use the flash to fill the light.

Slow shutter , because it has been open for a long time if you hold the camera, there is a great chance of shaking. So the slow shutter will work with a tripod. And because the slow shutter absorbs more light than normal, it will appear overexposed in a well-lit environment. In this case, we will use a small aperture, low ISO, or use a light reduction film to reduce the light entered.

Try some creative photos today!

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Author: Alex Tam