Posts Tagged ‘Luminance noise’

Image noise appears as blotches and speckles on your photos. It can appear distracting and reduce the clarity of a photo. In this article we'll look at what causes image noise, how to prevent it, and how to remove it from existing images.

Along with aperture and shutter speed, ISO is one of the settings on your camera that you can use to affect the brightness (exposure) of your photos. Unlike aperture it won't affect depth of field, and unlike shutter speed, it doesn't affect how quickly (or slowly) an image is captured. However, it can affect image quality by introducing what is known as 'noise'.