Learn about the concept if ISO sensitivity.

Last Update date : 2017.02.17

 

* Please note, this section is designed to give you basic product troubleshooting information, also refer to your user manual for more information. 

 

 

 

 Concept of ISO sensetivity

 

The exposure of an image is determined by the sensitivity of the camera. This sensitivity is based on international

film standards, known as ISO standards. On digital cameras, this sensitivity rating is used to represent the sensitivity

of the digital mechanism that captures the image. 


ISO sensitivity doubles as the number doubles. For example, an ISO 200 setting is capable of capturing images at

twice the speed of an ISO 100 setting. However, higher ISO settings can result in "noise"—small specks, spots,

and other phenomena in a photo that give the shot a noisy or dirty appearance. As a general rule, it is best to use

a low ISO setting to prevent noise in your photos, unless you are shooting in dark environments or at night.

 

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 iso 

ISO  

Changes in the quality and brightness according to ISO sensitivity

 

Because a low ISO sensitivity means the camera will be less sensitive to light, you need more light to have an

optimal exposure. When using a low ISO sensitivity, open the aperture more or reduce the shutter speed to allow

more light to enter the camera. For example, on a sunny day when light is abundant, a low ISO sensitivity does not

require a slow shutter speed. However, in a dark place or at night, a low ISO sensitivity will result in a blurry photo.

  Therefore, it is recommended to increase the ISO sensitivity by a moderate amount.

 

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 ISO Sensitivity 

ISO Sensitivity  

A photo captured with a tripod and high ISO sensitivity

A blurred photo with a low ISO sensitivity

 

  Consequently, by selecting a higher ISO sensitivity value, you can capture photos in dim or dark place at

faster shutter speeds.

  However, this may increase electronics noise and result in a grainy photo.

 

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 ISO160 

ISO400  

ISO160

ISO400

ISO800 

 ISO3200

ISO800

ISO3200

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 STEP1 

 Try setting ISO sensitivity.

 [MENU] → BUTTON  → ISO → Select the desired ISO value.

 

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 ISO  

ARROW

ISO  

 

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ISO  

 

 

 

 

 

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