Understanding ISO is really important for taking great photos in low light. Let's break it down:

1. What is ISO?
   ISO is a way to measure how sensitive your camera is to light. When you raise the ISO number, your camera can see better in the dark.

2. Benefits of High ISO:

   • You can take pictures in dim places.
   • Your camera can take pictures faster, which helps avoid blurry images.

3. An Example:
   If you want to take a picture at night, turning up your ISO from 100 to 1600 lets in more light. This way, you can capture clear details without needing a flash.

Just keep in mind, using a high ISO might create some grainy spots in your photos. So, it's important to find the right balance for your pictures!