Aperture and Shutter-Speed, EXAMPLE #1
Photo 1: A slower shutter-speed and a smaller aperture (thus making the light-opening larger) allows for the focus to fall on the phone while limiting the field of focus, making objects in the background quite blurry. This blur has no relationship to the “focus” feature on the camera, it is caused by the amount of light making it’s way to the receptors in the back of the camera.
Photo 2: A faster shutter-speed and a higher aperture (thus making the light-opening smaller) allows for the focus to fall on the phone while widening the field of focus, making objects in the background less blurry.
Note details in the chords and on the computer screen compared to the above photo.
Photo 3: This photo was taken to show how particles of light and dust are captured in the previous photos, causing what seems to be static or “film grain”. This because I upped the sensitivity of the senor to capture light in a dark room. Below, I reduced the ISO sensitivity and increased the shutter speed. The result is a cleaned photos with fuller coloration. But as you can see, much less detail.