In my Digital Materials and Processes class I had to do an assignment about Digital Noise. Noise is created by using high ISO and slow shutter speed, so for this assignment I had to shot 4 different images with different ISO. For the first image I shot I used an ISO of 100, for the second one an ISO of 400, for the third one ISO set in 800 and for the last one the highest ISO in my camera, but actually I could not use the highest ISO in my camera because the image was too white so I used a 3200 ISO. At first sight one cannot differentiate the Noise in the images, but if one look closely and look at the  shadows   of the images in two images the shadows look grainy       and that   is because of the Noise created by the high ISO. Also, another difference I noticed is that the file sizes of the images were different even though I shot all my images in RAW, so I asked myself what was the cause of that and the reason why some of the images had a bigger file size was because of the Noise.