# Shared Flashcard Set

## Details

Science and Theory Term 1 - 2016 Second Set
Fanshawe College - Photography- Level 1 Science and Theory
27
Photography
Not Applicable
12/27/2016

## Additional Photography Flashcards

Term
 What is Spectral Quality?
Definition
 It is the "HUE" of light coming from it's source.   [image]
Term
 What Colour Wavelengths Does A Blue Sky Have A High Content Of?
Definition
 High Blue Content
Term
 What Colour Wavelengths Do Tungsten Lamps Have A High Content Of?
Definition
 High Red Content
Term
 What is Colour Constancy?
Definition
 Our ability to see the colour of objects the same regardless of varying lighting conditions.
Term
 What is Colour Temperature?
Definition
 Heat up a “black body” and it begins to emit energy in the form of electromagnetic wave. The “black body” will begin to glow from a red colour to a yellow then white and then blue. The colour temperature of a light source is the temperature of a “black body” when it emits energy at similar spectral distribution as the light source.
Term
 What Are Examples of Colour Temperature?
Definition
 Candle =1930 K Tungsten light = 2700K-3400 K Daylight = 5500 K Electronic Flash = 6000 K Cloudy sky = 6500 K Blue Sky = 8000 K [image]
Term
 When It Comes to Spectral Quality, What Are We Most Concerned About?
Definition
 Colour Temperature White Balance
Term
 What is Perspective?
Definition
 per·spec·tive pərˈspektiv/ noun noun: perspective 1. the art of drawing solid objects on a two-dimensional surface so as to give the right impression of their height, width, depth, and position in relation to each other when viewed from a particular point.   OR   The size of objects in relation to each other
Term
 What are the 3 Camera Viewpoints and Perspectives?
Definition
 Flat, Normal and Steep
Term
 Example of Flat Perspective
Definition
 Long Focus or Telephoto Lenses will compress images and make them appear flat...no depth   Images are Spatially Compressed..no depth   [image]
Term
 Example of Normal Perspective
Definition
 Images Shot Using a Normal (50mm approximately) Lens Will Appear as We Would See Them Looking at Them or As They Appear to the Human Eye...Normal Depth       [image]
Term
 Examples of Steep Perspective
Definition
 When Images Have a Steep Perspective the Foreground is Disproportionately Large to The Background or Items in the Background...Not a Normal View   Images are Spatially Expanded...   [image]
Term
 What Causes the Change in Perspective?
Definition
 Distance!
Term
 What is The "Plane of Focus"?
Definition
 The only part (or plane) of an image that is "truly in focus"
Term
 What is the Circle of Least Confusion?
Definition
 The smallest diameter of a point source image that a lens can produce. This value is the maximum diameter of the image of a point source which will allow a reasonably sharp 8x10 print to be made from the image. [image]
Term
 What Happens to Depth of Field When the F# is Doubled or is Shut Down @ Stops?
Definition
 The Depth of Field "Space" Also Doubles
Term
 How is Depth of Field Proportional to The Distance?
Definition
 It is "squarely" proportional.  I.E. if you double the distance, depth of field quadruples. 2squared is 2x2 or 4 If you halve the distance, depth is quartered. Square root of 16 is 4, 4 is 1/4 of 16
Term
 Do Wide Angle Lenses Have More Depth of Field Than Telephoto Lenses?
Definition
 Yes   A wider angle lens will have more depth of field than a telephoto lens for any given f#
Term
 What Are The 3 Ways to Control Depth of Field?
Definition
 Aperture   Focal Length    Distance of Subject to Camera
Term
 How Does Aperture Control Depth of Field?
Definition
 The smaller the aperture (larger number) the greater the depth of field. More in focus.   The larger the aperture (smaller number) the less depth of field. Less in focus.
Term
 How Does Your Focal Length Control Depth of Field?
Definition
 The shorter your lens (smaller focal length i.e. 18mm, 24mm, 50mm,) has more depth of field.   The longer your lens (larger focal length i.e. 100mm, 300mm) has less depth of field.   This is only true if the camera distance has not changed!!
Term
 How Does Subject Distance From Camera Change Depth of Field?
Definition
 The farther the subject is from the camera, the greater the depth of field.   The closer the subject is to the camera, the less depth of field there is.
Term
 What is "Hyperfocal Distance"?
Definition
 When you focus your lens on infinity ∞ the nearest point that is also “acceptably sharp” is the hyperfocal distance. Focus at a particular point between the foreground and the background, which makes both the foreground and the background elements of the scene appear reasonably sharp. This focusing point is called the hyperfocal distance Changes with your aperture.
Term
 Why Does Aperture Change Your Hyperfocal Distance?
Definition
 Hyperfocal distance of your lens will vary with aperture. If your aperture is wide, such as f/2, you will need to focus quite far away for objects at infinity to appear in focus. However, at a small aperture of f/11 or f/16, distant objects will continue to be sharp even if your lens is focused more closely. With smaller apertures, the hyperfocal distance will be closer to your lens. [image]
Term
 How Do You Find the Hyperfocal Distance?
Definition
 When you focus your lens on infinity ∞ the nearest point that is also “acceptably sharp” is the hyperfocal distance Focus on the hyperfocal distance. This will result with infinity falling just within your depth field.   [image]
Term
 Why Should You Never Focus on Infinity?
Definition
 It is wasted depth of field as there is no beyond infinity.
Term
 What Happens if You Set Your Camera's Focus on the Hyperfocal Distance?
Definition
 It will extend your depth of field from one half the Hyperfocal distance to infinity....   [image]
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