ISO settings understanding for photography beginners

ISO settings understanding for photography beginners, The setting is a measure of how sensitive the camera sensor/ film is to light. A low (e.g. 50) is, therefore, suitable to use in bright situations while a high (e.g. 1600) is best suited to dark conditions (i.e. indoors).

It is always best to use a low where possible as the quality of the photo will be less grainy and clearer. If however, you want to achieve a grainy photo, perhaps to add texture or mystique to your image then a high  setting will be favored.










The First image has on 100 which make the picture quality clearer, the second image has been taken with an ISO of 1600 which has made the photograph grainy.