Understanding ISO

Brian Liepe: ISO is a numerical scale that refers to the sensitivity of a camera's sensor to light. …Now ISO is based on something called the exposure index, which rates film stocks using a numerical value. …As you lower the ISO setting, the sensor becomes less sensitive to light. …As you raise the ISO setting, it becomes more sensitive. …Chad Perkins: Personally I get a little scared adjusting ISO anymore than just a few increments. …When you increase the camera's sensor sensitivity to light by bumping up the ISO, it adds noise, …which can be awful.…

So in the next movie we'll look a little bit more about how ISO relates to noise and also …to the colors of your image. …