ISO, Aperture & Shutter Speed

ISO-100                           ISO-400

 ISO-1600                      ISO-6400








The ISO(in pictures above) is used to adjust the amount of noise(or grain) in the photo, it is a little harder to see in the pictures above, but the ISO-100 has less noise and is a cleaner more crisp photo whereas the image with the ISO-6400 has more noise and is less crisp of a picture with a more grainy quality.

portrait with an aperture value of f/5.6

portrait with an aperture value of f/36

In the top portrait the background is blurred because the aperture was opened wider allowing for the edges of the shot to be out of focus, whereas the lower photo has a smaller opening in the aperture making the entire image in focus but less soft, so for portraits it is preferred to shoot with a wider aperture.

These two images are demonstrations of a relatively high shutter speed of 1/1250 allowing an action shot or shot with fast motion to appear "frozen in time", w/o motion blur from the action itself.