The objective of this assignment was to take a range of photographs of one scene using all of the ISO settings available on our cameras. We were then asked to use the Loupe Tool in Aperture to see how changing the ISO affects the image. On my Canon 60D, it ranged from 100 to 6400. I shot a scene in my backyard for this exercise.
1) I noticed the image quality start to decline at 1600 ISO.
2) I found the noise most prevalent at 6400 ISO.
3) The noise was very static like and fuzzy.
4) I felt 800 ISO was the best.