Explanation of ISO

Article ID: ART158353 | Date published: 06/09/2015 | Date last updated: 11/16/2015


Explanation of ISO


The ISO speed is a numeric indication of the sensitivity to light. A higher ISO speed number indicates a higher sensitivity to light. Therefore, a high ISO speed is suited for moving subjects or shooting in low-light conditions. However, the image will contain more noise, making it look coarse or grainy. On the other hand, a low ISO speed will make the image look finer, but it is not suited for freezing motion or shooting in low light.



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