3 MAIN ASPECTS FOR TAKING A GOOD PHOTO: 3- ISO

The third and last element of the exposure triangle is the “ISO”

The ISO measures the sensitivity of the image sensor. It stands for “International Standards Organization”, and it is a standardized industry scale for measuring sensitivity to light.

ISO figures starts by 100 in most of the cameras till more than 20 thousand and this highest figure differs from a camera to another.

Like the other elements ISO controls 2 things.

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-First is the quantity of light coming to the camera .. a bigger ISO number lets more light into the camera & vice versa.

-Second is the image quality .. what does this mean?

Simply the lower the number the less sensitive your camera is to light and the finer the grain.

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A bigger ISO number may lead to noise and a bad quality picture.

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Anyone needs to understand it more, please tell me.

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