The Big Three
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Transcript of The Big Three
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A Window Example:
Aperture is the size of the window. If it’s bigger more light gets through and the room is brighter.
Aperture is the size of the window. If it’s bigger more light gets through and the room is brighter.
A Window Example:
Shutter Speed is the amount of time you leave the window open. The longer you leave them open the more light comes in.
Shutter Speed is the amount of time you leave the window open. The longer you leave them open the more light comes in.
A Window Example:
ISO is the sensitivity to light of the person inside the room. If they are wearing sunglasses (low ISO) it will take more light for them to see the image then if they are staring at it wide-eyed (high ISO).
ISO is the sensitivity to light of the person inside the room. If they are wearing sunglasses (low ISO) it will take more light for them to see the image then if they are staring at it wide-eyed (high ISO).
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Shutter Speed
•The length of time that the shutter remains open.
•Each progression represents half as much light.
•Common shutter settings: 1 second, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000, and 1/2000 second.
Focal Plane Door Sample
Leaf Shutter Example
Fast Shutter Speed
ADVANTAGES• Reduces blurriness as image is ‘seen’ only
briefly • Freeze Fast Motion• Great for sports events.
DISADVANTAGESLess time for light to enter cameraRequires bright conditions
Fast Shutter Speed Sample
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Fast Shutter Speed Sample
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Slow Shutter Speed
ADVANTAGES• Great for Darker Conditions• Soften Consistent Motion
DISADVANTAGES• Increased chance for bluriness• Often requires Tripod
Slow Shutter Speed Sample
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Slow Shutter Speed Sample
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Slow Shutter Speed Sample
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Slow Shutter Speed Sample
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More: http://www.digital-photography-school.com/blur-movement
Side By Side Shutter Speed
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Side By Side Shutter Speed
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Shutter Speed Assignment
Using Manual Shutter Speed Settings take one picture each
of the following:1) a)Freeze Fast Motion b)Same motion
but blurry2) Soften or Purposefully Blur
Consistent/Constant Motion3) Add Motion to moving subject with
blurry Background4) Stationary subject with blurry
background5) One Additional Creative Use of
Shutter Speed
* Number pictures as listed above* Include shutter speed settings in title
* Example Title: “1a Fast Motion 1/125”
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F~What?!?
Camera Aperture• The size of the opening that lets light
in• Also Called F-Stop
– F = Fractional opening relative to lens length
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Nonsense Numbers?!?
F-Stop Numbering• Common Stops: f2.8, f4, f5.6, f8, f11,
f16, f22• Small Numbers = Wide Opening• Large Numbers = Narrow Opening• Wide Opening = Short/Shallow Depth
of Field• Narrow Opening = Long/Deep Depth
of Field • Small Number = Shallow (small)
Depth of Field• Large Number = Deep (Large) Depth
of Field
Confused Yet, No Worries Me Too…
F-Stop Visual Basics
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F-Stop Visual Basics
http://photographertips.net
Portrait Landscape
Shallow Depth of Field
Deep Depth of Field
Depth and Defocus Blur
plane of focussensor lens
defocus blur depends on distance from plane of focus
subject
rays from point in focus converge to single pixel
circle of confusio
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Depth and Defocus Blur
lens plane of focus
defocus blur depends on aperture size
aperture
http://photographertips.net
sensor
subject
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Narrow Apertures Usage
Advantages• Gives Deep Depth of Field
– Shows complete scene– Landscape Photography
Disadvantages• Requires more Light• May require longer Shutter Speed
– Increases chance for blur
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Wide Apertures Usage
Advantages• Less Light Required• Allows for Faster Shutter Speed• Give focus to objects on focal
plane
Disadvantages• Shallow DOF• Can produced Washed-out, Over lit
images
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Aperture Side-By-Sides
Aperture Side-By-Sides
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Aperture Side-By-Sides
Lens Length The “X” Factor
Depth of field is dependent on Lens Length
- F-Stop is a “Fraction” of lens length- The longer the lens the more room
the light rays have to get off-track- Zoom usually results in reduced DOFDOF Calculations• DOF is generally 1/3 in front of and
2/3 behind focal plane. • Numerous Online Calculators:
http://www.dofmaster.com/dofjs.html
Aperture Pictures
Using Manual Aperture Settings take one picture each
of the following:1) A Landscape photo with deep depth
of field2) A Mid-Shot Portrait with (a) shallow
DOF (b) Deep DOF3) A macro CU with Shallow DOF4) A posed Portrait with initial
foreground blurry, shallow DOF, far background blurry
* Number pictures as listed above* Include Aperture settings in title
* Example Title: “2a Shallow DOF f22”
ISO
What is ISOThe sensitivity of the sensor to light
Terminology• Low=Slow, High=Fast
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More ISO
Refer to Class handout for more information regarding ISO.
ISO Pictures
By Adjusting the ISO settings take 3 shots of each of the following subjects
1) A Landscape photo (Slow ISO, Med ISO, Fast ISO)
2) A Mid-Shot Portrait (Slow ISO, Med ISO, Fast ISO)
3) A ECU (Slow ISO, Med ISO, Fast ISO)
* Number pictures and name pictures as listed above