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EMC 3130/2130 Lecture Two - The Camera Lens

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EMC 3130/2130 Lecture Two - The Camera Lens

EMC 3130/2130 Lecture Two - The Camera Lens

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  • 1. EMC 3130 Lecture Two The Camera – Parts and Pieces The Lens Edward Bowen
  • 2. “The Dark Side of the Lens” by Mickey Smith http://vimeo.com/16691463
  • 3. Part 1: The Lens • Lens - A piece of glass or other transparent substance with curved sides for concentrating or dispersing light rays.
  • 4. Part 1: The Lens • Lens - A piece of glass or other transparent substance with curved sides for concentrating or dispersing light rays.
  • 5. Part 1: The Lens The Human Eye Bill Nye The Science Guy on The Eyeball (Full Clip)http://youtu.be/cFVbLnXWn6A
  • 6. The Camera Deconstructed http://science.discovery.com/videos/deconstructed-shorts- how-do-digital-cameras-use-light.html
  • 7. The Camera Deconstructed http://youtu.be/ezIZjFt80kQ
  • 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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