What the Heck are 3 Pillars of Exposure: Aperture, ISO & Shutter Speed

When using a camera, there are three very important settings that you can play with to get the perfect picture. These are Aperture, ISO and Shutter Speed. In this blog post we will take a look at what these settings mean and how they work together to give you the best pictures possible!

Aperture is the opening or hole that light passes through to get into your camera. The size of this opening determines how much light gets in and can change depending on what setting you are using. A smaller aperture (larger number) will give you a more focused, narrow picture with less light than a larger aperture (smaller number).

ISO is the sensitivity of your camera to light. The higher this number, the more sensitive your camera is and will thus give you a brighter picture with less exposure time (the amount of time that it takes for one shutter opening). If you are taking pictures in low-light situations like inside by candlelight or outside at night, then ISO is very important for your pictures.

All 3 of these settings can be used together to get the perfect image or for a creative effect.

If you are new to photography or videography, it can take some repetition to understand what each of these represents. So let me just reiterate one last time:

Aperture, Shutter Speed and ISO are often referred to as the 3 Pillars of Exposure.

  • Aperture: The size of the opening where light enters.
  • Shutter Speed: How much time it takes for one shutter to open and close.
  • ISO: Sensitivity to light, a higher number = more sensitive to light.

– Aperture is also known as f/stop and refers to how wide or narrow an image will be.

– Shutter speed is also known as exposure time and has a range from fractions of a second to several minutes.

– ISO refers to the sensitivity of your camera’s film or image sensor. The higher the number, the more sensitive it is – producing brighter images with less light at the expense of noise in your picture.

Jane Davis

Jane Davis

I am a passionate storyteller and content creator who is looking to change the world. I have a strong background in video production, which has given me a deep understanding of storytelling and how it can be used to create social impact. As a Director at Docuo, I work with brands, agencies and individuals to bring their stories to life through documentary films. My passion lies in creating compelling videos that tell great stories while also building awareness about important causes or issues that need attention from society today. This is what drives me every day.
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