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 https://youtu.be/P_HUmfeCdMU
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 effects exposure. Backlight Control (BLC) opens the aperture by 1 or 2 f stops
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.
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. http://vimeo.com/20691161
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. https://vimeo.com/1194832
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://youtu.be/O7yNSkFxHAA
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. The aperture also effects depth of field. The smaller the aperture (for example f22), the more depth of field. http://vimeo.com/22113049
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. https://youtu.be/z8BVqIEjsXQ
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. http://youtu.be/8W3wepZyDHA
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. http://youtu.be/-6rSOoaW_nE
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/27582408
87. 87. 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
88. 88. 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