Friday, October 24, 2014

Aperture, Shutter Speed and ISO

Photo in F2.8 aperture
Source
Photo in F16 aperture
Source
1. The part of the body that we should closely relate aperture to is the eye.
2. The smaller the aperture the larger the F-number, the higher the aperture the smaller the F-number.
3. Aperture affects the depth of field because it is the area of the image that appears sharp.

Shutter Speed
Low Shutter Speed
Source
High Shutter Speed
Source
While the sun is still out:
1. Low shutter speed for a booth in the middle of the yard near the Tree because there isn't really anything you are specifically capturing. 
2. Low shutter speed for a food booth outside under one of the big red awnings
3. High shutter speed for the Stars performance inside the gym because they are moving fast, so you would need a high shutter speed to capture their movement.
4. High shutter speed for students dancing near the center of the courtyard
 people streaming in from the front doors.
5. While there is a lot of movement going on by the front doors, I would use a low shutter speed to 
blur out the moment.
6. The basketball booth where students are shooting basketballs at a hoop, I would use a high shutter speed to stop the basketball in its position. 
When sun is not out:
1. Low shutter speed for a booth in the middle of the yard need the tree.
2. High shutter speed for the food booth outside under one of the big red awnings.
3. High shutter speed for the Silver Star's performance.
4. Low shutter speed for students dancing near the center of the courtyard. 
5. Low shutter speed for the people streaming in through the front doors. 
6. High shutter speed for the basketball booth.

The three settings a camera has regarding shutter speed:
1. Shutter priority: camera automatically selects the aperture.
2. Manual: you can set shutter speed and aperture yourself.
3. Aperture priority: camera calculates shutter speed.
Picture at ISO 200: Source

Picture at ISO 3200: Source

1. The advantages of shoot at a higher ISO at a sporting event like basketball or night football is you will be able to quickly capture an image. Also, you'll be able to get ultra-fast shots.

2. The author suggested to use the lowest  ISO when when there is plenty of light. The lowest ISO is usually ISO 100 or 200. By doing this you'll be able to retain the most detail and have a high quality photo.
3. The author suggested to use a high ISO when there isn't enough light. He also suggests using the setting "Auto ISO" and set it to the maximum, which is ISO 800. By doing this you'll be able to freeze motion.

Aperture settings available on a DSLR camera:
  • 2.8
  • 4
  • 5.6
  • 8
  • 11
  • 16
  • 22
Shutter Speed settings:
  • 1 sec
  • 1/60 sec
  • 1/4000 sec
ISO settings:
  • 100
  • 200
  • 400
  • 800
  • 1600
  • 3200
  • 6400
  • 12800
  • 25600