Learn About Aperture ISO and Shutter Speed in 1 Minute


Many friends who are new to photography may have heard the three terms “aperture, shutter and ISO sensitivity”, but it is also difficult to clearly understand their meaning and interaction. For example, your aperture setting is wrong (for example, using a large aperture). (Or small aperture), even if the shutter and ISO sensitivity are at the correct value, the effect of the photo will be unsatisfactory. The photo is often blurred or underexposed/overexposed. We have specially written a list for everyone. See clearly the effects and changes after setting the aperture, shutter and ISO at once. After reading this article, I hope you can use the mysterious “aperture, shutter and ISO” with confidence!

The Mystery of Aperture

Tips: The larger the aperture, the smaller the value (such as f/1.4), don’t make a mistake!

Aperture   Large Aperture   Small Aperture
Value (e) f / 1.4, f / 2.8, etc. f / 16, f / 22,and so
Changes Field of depth shallow
The light amount more
Field of depth deep
The light amount less
Effect Background is blur
Focus on the subject and stand out. 
Suitable for shooting portraits or close-up
All is clear
Showing everything clear and detailed. 
Suitable for shooting landscape or documentary
Available light Use it in a dim environment or when you want to highlight the subject Commonly used when the light is sufficient or the whole photo needs to be clear

The Mystery of ISO

Tips: Use proper ISO sensitivity, don’t blindly pursue a low ISO

ISO Sensitivity Low ISO High ISO
Value  ISO64, ISO100, etc. ISO3200, ISO6400, etc
Changes Reduced sensitivity to ambient light Avoid overexposure when the aperture is large or the shutter is slow Sensitivity to ambient light is liftingA small aperture, Even the shutter speed high can have normally exposure
Effect Very low signal noiseThe highest quality and clear photos A lot of signal noiseThe edges of the main body of the photo begin to blur
Available Light Commonly use with sufficient lightWhen using a tripod Commonly use with
When shooting aurora, starry sky, star trails
Example Kamikochi

Shutter Speed Slow Shutter Fast Shutter
Numerical Value  30 seconds, 15 seconds, 1 second, etc. 1/100 second, 1/500 second, 1/4000 second, etc.
Variations Can absorb more ambient light
Normal exposure when the aperture is small or the sensitivity is low
Reduce the light entering the lens
Avoid overexposure of photos when there is a lot of light on site
Effect Can record the passage of time
The main subject becomes blurred when moving
If you don’t use a tripod, there will be shaking due to hands
Can freeze instant moving object.

Avoid blurry photos when held in hand
Available Light Commonly used when there is insufficient light

When shooting water, starry sky, night scenes
Use when there is enough light.

When shooting sports and flying birds
Example Slow Shutter Speed in the dark Fast Shutter Speed
Slow Shutter Speed Fast Shutter Speed

The Mystery of Shutter Speed

Tips: When checking the shutter, pay attention to whether there is a [”] label, which means “second” instead of “1/x second”

After reading the above information, should you have a concept of when to use “aperture, shutter and ISO”? If yes, carry on reading our next post

Written by Collin Smith @ remotes.works Holborn London


  • Author's gravatar
    Yorky 27th November 2018 , 9:53 am

    Learn by experience. 1 minutes to learn the combination is impossible!

    • Author's gravatar
      William 27th November 2018 , 10:23 am


  • Author's gravatar
    Yeadh 27th November 2018 , 9:53 am

    Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

  • Author's gravatar
    William 27th November 2018 , 10:23 am

    ISO is completely digitized


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