Regardless of how it is being referred to, the meaning is the same. At other times, you might see it referred to as an optical disc image. However, in this article, we are talking about ISO files.Īn ISO file is also sometimes referred to as an ISO image. If you conduct a Google search for “What is ISO,” you will likely come across articles explaining what ISO means in photography. If you are taking a photo and there is not enough surrounding light, and everything looks dark, you can raise the ISO so that the photo is lighter. When ISO is used in photography, it refers to a camera setting that allows you to brighten or darken a photo. In this article, we are referring to ISO files. ISO is a common term in photography, but it is not to be confused with what we are talking about here. Wrapping It Up: Is PowerISO Or UltraISO The Better Choice? What Is PowerISO? What Is UltraISO?