The international standard measurement of a camera's sensitivity to light, often simply called the "eye-so." For analog film cameras, the ISO is the "film speed," which is based on the chemical ...

Learn to manually set your film speed. It will make dramatic improvements in your photographs. Film speed, also known as, ASA (American Standards Association) and ISO (International Standards ...

Used to indicate the light sensitivity of a film as ISO. Digital cameras also use the ISO rating to indicate the CCD sensitivity. Most cameras now set the speed film automatically using DX coded film ...