ISO

Flash

ISO 400

ISO 5000

ISO stands for International Organization for Standardization. It refers to film speed. You would want to use ISO 50 when it is bright outside. When we took the picture of the flash you could see the picture clearly and it added more light, but then you weren't able to see the strand of light clearly. Using ISO is good when you want to really capture the true meaning of the picture. You have to be careful of the lighting when you use a fast ISO.