What exactly is ISO in photography? You’ve probably heard of it when someone shouts random numbers at you at a camera club. It seems important. Maybe it influences exposure? Can it make your images brighter or more grainy or less sharp, or all of those?
It might seem a bit mysterious at first, but ISO is pretty straightforward, and is the final key to understanding the exposure triangle. Here we will chat about all things ISO related and demystify this final clue to the exposure puzzle.