However, ISO settings in digital photography will still produce differences in film grain and image brightness.
Lower ISO settings are less sensitive to light and will produce an image with much higher resolution.įilm grain does not exist in digital photography as digital photographic sensors do not have particles of silver halide floating around inside them.
Higher ISOs are more sensitive to light and, due to the size of the light-sensitive particles, are much grainier. ISO is not an indicator of how many grains are present in a film, but a measurement of the film’s sensitivity to light. Whether it’s a fine grain or a coarse grain, ISO is the primary method for referencing how much grain exists in an image.
