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Aperture presentation 1


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Aperture presentation 1

  1. 1. Aperture <ul><li>By Addie Butler </li></ul>
  2. 2. What is aperture? <ul><li>Aperture is the opening in the lens that lets more or less light in by opening and closing
  3. 3. The bigger the aperture, the more light is allowed in while the smaller the aperture, the less light is allowed in.
  4. 4. Apertures are notated as f/stops </li></ul>
  5. 5. f/stop <ul><li>Common f/stops or aperture numbers are: 1.4, 2.8, 4, 5.6, 8, 11 , 16, 22, & 32
  6. 6. The smaller the f/stop the wider the opening </li></ul><ul><ul><li>f/1.4 is a wider aperture then f/8 and therefore will let in more light. </li></ul><li>Each whole aperture stop lets in twice as much light as the one before </li><ul><li>For example f/5.6 lets in twice as much light as f/8 </li></ul></ul>
  7. 7. Depth of Field <ul><li>Depth of Field is how much of the area in frond and behind the subject that is in focus
  8. 8. The wider the aperture, the narrower the depth of field which will give you a blurrier background
  9. 9. The narrower the aperture, the greater the depth of field which will put more of your background in focus </li></ul>
  10. 10. When to use a wide aperture <ul><li>When you want to allow more light to come in and expose your photograph more
  11. 11. When you want to blur your background
  12. 12. Use for portraits, flowers or anything else that you might want a blurred background </li></ul>f/5.6
  13. 13. When to use a small aperture <ul><li>When you want to allow not as much light to expose your photograph less
  14. 14. When you want everything in your photograph sharp and in focus
  15. 15. Use for landscapes, group photos and any other photos you might want the entire photo to be in focus </li></ul>
  16. 16. Good example of using the wrong aperture f/4
  17. 17. Controlling your Aperture <ul><li>Aperture can be controlled in Aperture Priority mode and Manual Mode </li></ul><ul><ul><li>Manual- You can set your Aperture, ISO and Shutter Speed
  18. 18. Aperture Priority- You can set your Aperture and ISO and the camera decides the best shutter speed </li></ul></ul><ul><ul><ul><li>Canon is AV for Aperture Priority
  19. 19. Nikon and other cameras is A for Aperture Priority </li></ul></ul></ul>