1. What are the three parts of the exposure triangle? Lens Aperture, ISO, and Shutter Speed. 2. How much more exposure is there as you change from one ISO setting to the next? Twice as much as the one before it. 3. What is the main drawback to changing the ISO from low to high? The higher you set the ISO, the more noise there will be in the photo. 4. What are a few ways to reduce the appearance of noise in the photo? You can go in the menu of your camera and select "High ISO Noise Reduction" or you could change the F-stop and shutter speeds. 5. What is the difference between Chromatic and Luminance noise? Chromatic noise is random color variations in pixels while the Luminance noise is random variations of brightness within the pixels. Chromatic noise is easy to remove but Luminance noise is difficult to remove. 6. What are a couple of example of when and why you might want to increase the ISO of the camera? You can increase ISO when taking pictures in dimly lit areas at night to amplify the amount of light received by the camera, you could also use it for sports to capture high speed movements to remove the blur aspect.