EMC 3130
Lecture Two
The Camera – Parts and Pieces
The Lens
Edward Bowen
“The Dark Side of the Lens” by Mickey Smith
http://vimeo.com/16691463
Part 1: The Lens
• Lens - A piece of glass or other transparent substance with curved
sides for concentrating or dispersin...
Part 1: The Lens
• Lens - A piece of glass or other transparent substance with curved
sides for concentrating or dispersin...
Part 1: The Lens
The Human Eye
Bill Nye The Science Guy on The Eyeball (Full
Clip)http://youtu.be/cFVbLnXWn6A
The Camera Deconstructed
http://science.discovery.com/videos/deconstructed-shorts-
how-do-digital-cameras-use-light.html
The Camera Deconstructed
http://youtu.be/ezIZjFt80kQ
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
What-is-...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters the
camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters the
camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters the
camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters the
camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters the
camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters the
camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters the
camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters the
camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters the
camera, and determines field (angle) of...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Focal Le...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Focal Le...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Focal Le...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Focal Le...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Focal Le...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Focal Le...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Focal Le...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Focal Le...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Focal Le...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Focal Le...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
50mm to ...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses l...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses l...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses l...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses l...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses l...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses l...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses l...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Wide Ang...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Wide Ang...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Wide Ang...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Wide Ang...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Wide Ang...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Wide Ang...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Wide Ang...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Lenses t...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Speed is...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Speed is...
Part 1: The Lens
Lenses are defined by focal length (measured in millimeters) and
by speed (measured in f/stops).
Speed is...
Part 1: The Lens
The Aperture – measured in f stops. Counter-intuitively, the
larger the f stop number, the SMALLER the op...
Part 1: The Lens
The lens focuses and controls the amount of light that enters
the camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls
the amount of light that enters
the camera, and determines
field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters
the camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters
the camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters
the camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters
the camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters
the camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters
the camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light that enters
the camera, and determines field (angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
Part 1: The Lens
The lens focuses and controls the amount of light
that enters the camera, and determines field
(angle) of...
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EMC 3130/2130 Lecture Two - The Camera Lens

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EMC 3130/2130 Lecture Two - The Camera Lens

  1. 1. EMC 3130 Lecture Two The Camera – Parts and Pieces The Lens Edward Bowen
  2. 2. “The Dark Side of the Lens” by Mickey Smith http://vimeo.com/16691463
  3. 3. Part 1: The Lens • Lens - A piece of glass or other transparent substance with curved sides for concentrating or dispersing light rays.
  4. 4. Part 1: The Lens • Lens - A piece of glass or other transparent substance with curved sides for concentrating or dispersing light rays.
  5. 5. Part 1: The Lens The Human Eye Bill Nye The Science Guy on The Eyeball (Full Clip)http://youtu.be/cFVbLnXWn6A
  6. 6. The Camera Deconstructed http://science.discovery.com/videos/deconstructed-shorts- how-do-digital-cameras-use-light.html
  7. 7. The Camera Deconstructed http://youtu.be/ezIZjFt80kQ
  8. 8. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Starting a fire with a HUGE magnifying glass http://youtu.be/ZxKreUHIINk
  9. 9. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Manual Focus vs. Auto Focus
  10. 10. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Pulling Focus / Rack Focus http://youtu.be/x4jtSZRe_8g
  11. 11. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Follow Focus / Rack Focus http://youtu.be/AWt3-X5z-pU
  12. 12. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The Limitations of Auto-Focus "Nikon D3100" - Auto-focus vs. Manual-Focus http://youtu.be/OKINwE8CzD0
  13. 13. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The Limitations of Auto-Focus Nikon D7000 continuous auto focus test 1 http://youtu.be/48KvRGVc7GU
  14. 14. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Different lenses reveal more of less of the world before them.
  15. 15. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Different lenses reveal more of less of the world before them. http://youtu.be/akMDW7YFeR4
  16. 16. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). What-is-Focal-Length http://youtu.be/orbI9-eICBU
  17. 17. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Different lenses reveal more of less of the world before them. Lens focal length and Field of View https://vimeo.com/33150248
  18. 18. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Aside: The same lens will reveal more of less of the world before it when placed before different sizes of sensors.
  19. 19. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis
  20. 20. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis
  21. 21. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis
  22. 22. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis: Shallow Focus
  23. 23. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis: Shallow Focus http://vimeo.com/24049353
  24. 24. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis: Shallow Focus http://youtu.be/qNKpjrxINos
  25. 25. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis: Shallow Focus Cosmic Bokeh https://vimeo.com/44434153
  26. 26. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis: Shallow Focus http://youtu.be/wzGXjD2gaV4
  27. 27. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis: Shallow Focus / Rack Focus http://mtmedia.mtsu.edu:8888/ebowen/Young Victoria Rack Focus.mov
  28. 28. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis: Deep Focus http://www.vimeo.com/19915642
  29. 29. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis: Deep Focus http://youtu.be/jsxHZ5TS-Yw
  30. 30. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. Focus depth along the Z axis: Deep Focus Free Pie https://vimeo.com/62629251
  31. 31. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Focal Length effects field of view…
  32. 32. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Focal Length effects field of view, as well as linear distortion …
  33. 33. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Focal Length effects field of view, as well as linear distortion …
  34. 34. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Focal Length effects field of view, as well as linear distortion …
  35. 35. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Focal Length effects field of view, as well as linear distortion , perspective distortion … Foreground and background seem unnaturally stretched apart
  36. 36. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Focal Length effects field of view, as well as linear distortion , perspective distortion … Foreground and background seem unnaturally stretched apart
  37. 37. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Focal Length effects field of view, as well as linear distortion , perspective distortion … Or foreground and background seem unnaturally compressed.
  38. 38. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Focal Length effects field of view, as well as linear distortion , perspective distortion … Or foreground and background seem unnaturally compressed.
  39. 39. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Focal Length effects field of view, as well as linear distortion , perspective distortion … Or foreground and background seem unnaturally compressed.
  40. 40. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Focal Length effects field of view, as well as linear distortion , perspective distortion, and depth of field.
  41. 41. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). 50mm to 75mm lenses are considered normal, and reproduce the world without noticeable distortion.
  42. 42. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses less that 50mm (35mm, 28mm, 24mm, 21mm, 18mm, 14mm are considered short lenses or WIDE ANGLE LENSES
  43. 43. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses less that 50mm (35mm, 28mm, 24mm, 21mm, 18mm, 14mm are considered short lenses or WIDE ANGLE LENSES. The wider the lens, the greater the field of view…
  44. 44. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses less that 50mm (35mm, 28mm, 24mm, 21mm, 18mm, 14mm are considered short lenses or WIDE ANGLE LENSES. The wider the lens, the greater the linear distortion …
  45. 45. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses less that 50mm (35mm, 28mm, 24mm, 21mm, 18mm, 14mm are considered short lenses or WIDE ANGLE LENSES. The wider the lens, the greater the perspective distortion …
  46. 46. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses less that 50mm (35mm, 28mm, 24mm, 21mm, 18mm, 14mm are considered short lenses or WIDE ANGLE LENSES. The wider the lens, the greater the depth of field…
  47. 47. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses less that 50mm (35mm, 28mm, 24mm, 21mm, 18mm, 14mm are considered short lenses or WIDE ANGLE LENSES. http://vimeo.com/4827204
  48. 48. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses less that 50mm (35mm, 28mm, 24mm, 21mm, 18mm, 14mm are considered short lenses or WIDE ANGLE LENSES. http://youtu.be/gPtVNDvwGMo
  49. 49. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Wide Angle Lenses less that 10mm are known as FISH EYE LENSES. http://www.thedailyshow.com/watch/wed-october-30-2002/fisheye-lens
  50. 50. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Wide Angle Lenses less that 10mm are known as FISH EYE LENSES. http://youtu.be/_dmEY2izZpk
  51. 51. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that are more than 75mm (85mm, 135mm, 300mm) are considered long lenses or TELEPHOTO LENSES.
  52. 52. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that are more than 75mm (85mm, 135mm, 300mm) are considered long lenses or TELEPHOTO LENSES. The longer the lens, the more magnified the field of view ...
  53. 53. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that are more than 75mm (85mm, 135mm, 300mm) are considered long lenses or TELEPHOTO LENSES. The longer the lens, the less the linear distortion.
  54. 54. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that are more than 75mm (85mm, 135mm, 300mm) are considered long lenses or TELEPHOTO LENSES. The longer the lens, the more perspective distortion is flattened.
  55. 55. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that are more than 75mm (85mm, 135mm, 300mm) are considered long lenses or TELEPHOTO LENSES. The longer the lens, the less the depth of field.
  56. 56. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that are more than 75mm (85mm, 135mm, 300mm) are considered long lenses or TELEPHOTO LENSES. http://vimeo.com/14545803
  57. 57. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that are more than 75mm (85mm, 135mm, 300mm) are considered long lenses or TELEPHOTO LENSES. http://vimeo.com/8640696
  58. 58. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that are more than 75mm (85mm, 135mm, 300mm) are considered long lenses or TELEPHOTO LENSES. 5200mm Canon Lens World's MOST powerful Super telephoto EF FD (updated upload) http://youtu.be/IRq18WpQZC0
  59. 59. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Wide Angle or Telephoto? Midnight walk https://vimeo.com/7581601
  60. 60. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Wide Angle or Telephoto? Banzai Pipeline https://vimeo.com/19489506
  61. 61. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Wide Angle or Telephoto? Port Macquarie Surfing https://vimeo.com/30782638
  62. 62. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Wide Angle or Telephoto? Dogs of the Teva Mountain Games 2012 http://youtu.be/npsZ_qqHdHc
  63. 63. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Wide Angle or Telephoto? Telephoto-vs-Wide-Angle---Ai-Cinematography http://youtu.be/A0JOtBtceL8
  64. 64. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that have a constant or fixed focal length are called prime lenses.
  65. 65. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that have a constant or fixed focal length are called prime lenses. Lenses that have a variable focal length are called zoom lenses. http://youtu.be/UqtkcWbk69g
  66. 66. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that have a variable focal length are called zoom lenses. (Probably best to NEVER use a digital zoom, only an optical zoom.) http://youtu.be/UqtkcWbk69g
  67. 67. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that have a constant or fixed focal length are called prime lenses. Lenses that have a variable focal length are called zoom lenses. http://youtu.be/FPBYOIetRdw
  68. 68. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Lenses that have a constant or fixed focal length are called prime lenses. Lenses that have a variable focal length are called zoom lenses. Eyes vs. Cameras (Tutorial: HDR Video & Dolly Zoom) : Indy News http://youtu.be/NaVYljXBbdQ
  69. 69. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Speed is determined by the largest opening of the aperture. Lenses with larger maximum aperture openings are considered “faster” than lenses with smaller maximum apertures. Faster lenses can shoot under lower light conditions. Zoom lenses can have a variable speed, i.e. be faster at 18mm than at 55mm.
  70. 70. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Speed is determined by the largest opening of the aperture. Lenses with larger maximum aperture openings are considered “faster” than lenses with smaller maximum apertures. Aperture https://vimeo.com/19603662
  71. 71. Part 1: The Lens Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops). Speed is determined by the largest opening of the aperture. Lenses with larger maximum aperture openings are considered “faster” than lenses with smaller maximum apertures. Shutter Speed Difference DSLR Video http://youtu.be/PZi7sUhtAVY
  72. 72. Part 1: The Lens The Aperture – measured in f stops. Counter-intuitively, the larger the f stop number, the SMALLER the opening. The smaller the aperture, the less light is admitted.
  73. 73. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The aperture effects exposure, the relative brightness or darkness of the image. Other factors are the sensitivity of the image sensor (ISO), and the shutter speed. Over Exposed Normal Exposure Under Exposed
  74. 74. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The aperture effects exposure, the relative brightness or darkness of the image. Other factors are the sensitivity of the image sensor (ISO), and the shutter speed.
  75. 75. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The aperture effects exposure. Backlight Control (BLC) opens the aperture by 1 or 2 f stops
  76. 76. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The aperture effects exposure. Backlight Control (BLC) opens the aperture by 1 or 2 f stops
  77. 77. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The aperture also effects depth of field. The smaller the aperture (for example f22), the more depth of field.
  78. 78. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The aperture also effects depth of field. The smaller the aperture (for example f22), the more depth of field. http://vimeo.com/20691161
  79. 79. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The aperture also effects depth of field. The smaller the aperture (for example f22), the more depth of field. https://vimeo.com/1194832
  80. 80. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The aperture also effects depth of field. The smaller the aperture (for example f22), the more depth of field. http://youtu.be/O7yNSkFxHAA
  81. 81. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. The aperture also effects depth of field. The smaller the aperture (for example f22), the more depth of field. http://vimeo.com/22113049
  82. 82. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. http://youtu.be/8W3wepZyDHA
  83. 83. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. http://youtu.be/-6rSOoaW_nE
  84. 84. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. https://vimeo.com/27582408
  85. 85. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. https://vimeo.com/27556331
  86. 86. Part 1: The Lens The lens focuses and controls the amount of light that enters the camera, and determines field (angle) of view, and depth of field. https://vimeo.com/27556482

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