ISO

Flash

50

400

800

5000

ISO is the film speed which means how fast or slow the camera retracts to the light. The difference between the flash and the is that flash is just one bright light, but with ISO you can add or take away lighting to the picture little by little to the point where you want just the right amount of light. Over the course of my pictures, by increasing the ISO on the camera, it's adding more light to the photo. I would chose to use ISO over flash because the flash can create too much light that I don't want in the picture, and the ISO can add the right amount of light that I want. When I use a fast ISO, I have to be careful of creating a blur.