ISO

ISO 200

ISO 6400

1) Shooting sporting events is best with a higher ISO because it will enable the camera to increase the amount of light it takes in which results in a better freeze of an image.
2) A low ISO is best used when there is plenty of light to obtain the greatest amount of detail. Low ISO in dimmer environments will need more exposure time, and moving objects will look like ghosts.
3) Higher ISO was suggested to be used indoors for when light isn't so available, as well as at sports, in order to increase the amount of light that is taken in an image in order to get the best freeze effect.
4) The ISO amounts include an Auto setting, and then 100, 200, 400, 800, 1600, essentially doubling from 100.