Mba 509 Understanding Aspect Ratios

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Mba 509 Understanding Aspect Ratios

  1. 1. Understanding Aspect Ratios
  2. 2. History <ul><li>Aspect ratio: the relationship between the width and height of a film image </li></ul><ul><li>Late 1890s—Early 1950s </li></ul>
  3. 3. History <ul><li>As television became more popular, movie theater attendance began to decrease </li></ul><ul><li>The film industry introduced wider (more “epic” aspect ratios </li></ul>
  4. 4. Examples <ul><li>1.85:1 (Academy Flat) </li></ul><ul><li>2.35:1 (Scope/Panavision) </li></ul>
  5. 5. Origin of the “Black Bars” <ul><li>“ Black bars” on the top and bottom of an image are the result of a mismatch between </li></ul><ul><ul><li>The aspect ratio of the media </li></ul></ul><ul><ul><li>The aspect ratio of the viewing device </li></ul></ul>
  6. 6. Origin of the “Black Bars” <ul><li>Widescreen displays are not immune </li></ul>
  7. 7. Dealing with the discrepancy <ul><li>Film studios regularly distribute two versions of a movie on DVD </li></ul><ul><ul><li>Widescreen (aspect ratio preserved, “black bars”) </li></ul></ul><ul><ul><ul><li>Also called “Letterbox” or “Original Aspect Ratio” </li></ul></ul></ul><ul><ul><li>Full Screen (modified to fit a 4x3 screen) </li></ul></ul><ul><ul><ul><li>Also called “Full Frame” or “Pan & Scan” </li></ul></ul></ul>
  8. 8. How to Tell the Difference
  9. 9. Summary <ul><li>“ Aspect ratio” defined </li></ul><ul><ul><li>1.33:1 </li></ul></ul><ul><ul><li>1.85:1 </li></ul></ul><ul><ul><li>2.35:1 </li></ul></ul><ul><li>“ Black bars” described </li></ul><ul><li>Widescreen versus Full Screen </li></ul>

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