What is ISO setting on my digital camera ?
What is ISO setting and how does it affect my photos ? Learn about benefits of using manipulating ISO setting for better low-light pictures. Also learn about side-effects of using higher ISO values (such as noise), and how to avoid them. ISO (also known as ASA) is a number (traditionally in range 100 - 800 on most films) that describes the film's sensitivity to the light . Previously, when using film cameras, ISO was also referred as film speed , and was marked on the film box. Higher number corresponded to higher sensitivity to light, and therefore better suitability for use in low-light conditions. In digital photography, films are no longer used, but the still rules still apply. This time ISO setting defines the sensitivity of the digital camera's image sensor . Higher ISO values correspond to higher sensitivity and therefore better low-light performance. What is relation between ISO sensitivity, aperture and shutter speed ? We have already talked about shutter spee...