Nidelva river through Trondheim Norway

Nidelva river through Trondheim Norway
by Saaru Lindestokke                

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ISO is the sensitivity of the camera's sensor or film; high ISO is more sensitive and often required in low-light situations, where there is a large correlation with noise.

High ISO sensitivity is a feature enabled by digital cameras or sensors. Photos taken at high values of ISO Sensitivity have specific issues, most notably noise.

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