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Film Production Compensation & Depth of Field
N/A
23
Film, Theatre & Television
Undergraduate 4
06/27/2014

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Cards

Term
Definition for Depth of Field
Definition
Depth of Field is areas of acceptable focus
Term
What is PPF?
Definition
PPF is Principal plane of focus or Absolute Point of Focus
Term
4 Factors that affect Depth of Field
Definition
o Focal Distance or Talent to Camera
o Focal Length or size of the lens in mm
o Aperture
o Format
Term
What 3 things will give you less depth of Field?
Definition
Close Distance Subject, Large Aperture and/or Telephoto
Term
What 3 Things will give you more depth of field?
Definition
Distant subject, Small Aperture and/or Wide Angle
Term
the standard Focal Length for 16mm film
Definition
25mm
Term
What are T-Stops?
Definition
Measurements of light after it has entered the lens, Otherwise known as True Stops
Term
What are F Stops?
Definition
Measurements of light before lights passes through the lens, Otherwise known as Fraction Stops
Term
F Stop Scale
Definition
1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32
Term

Which will give you more depth of Field?

35mm or 16mm

Definition
16mm
Term
How do you get a More Shallow Depth of Field?
Definition
Lower your F Stop
Term
How do you get more depth of field?
Definition
Move you talent further away from the Camera
Term
What is Hyper-Focal Distance?
Definition
the near distance when the lens is set to infinity
Term
When would you use Hyper-Focal Distance?
Definition
when you want to maximize your depth of field or for establishing shots. When we are unable to measure. Flying Photography.
Term
How do you use Hyper-Focal Distance?
Definition
Set your lens to Infinity
Term
How do you use ASA?
Definition
Numbers double as they go up or down. For example: 200 goes to 400 goes to 800, or 200 goes to 100 goes to 50 goes to 25. When you double up, you gain a stop of light, when you double down, you go down a stop of light.
Term
ASA Scale
Definition
800 1000 1280
400 500 640
200 250 320
100 125 160
50 64 80
25 32 40
Term
When do you use ND Filters?
Definition
When you want to Get rid of F Stops w/o affecting color temperature
Term
What are the 4 ND Filters?
Definition
ND.3 – 1 Stop
ND.6 – 2 Stops
ND.9 – 3 Stops
ND 1.2 – 4 Stops
Term
What are the 2 Conversion Filters?
Definition
- 80A: 2 Stops (CTB) converts Tungsten to Daylight
- 85B: 2/3 Stops (CTO) Converts Daylight to Tungsten
Term
What do you shoot at the head of every role and lighting change?
Definition
Grey Card, used by the lab to calibrate the roll to what you actually shot.
Term
What does a Polarizing filter do?
Definition
reduces glare by 2 stops and will saturate your colors
Term
What is the normal shutter angle?
Definition
180, You can only half the shutter and can do it to reduce motion blur. The film would be exposed for less time. You get a much sharper image with less shutter angle. You are also decreases 2 stops.


6fps 12fps 24fps 48fps 96fps
2.5secs 5secs 10secs 20secs 40secs
Fast w/ less light ------------------------------------------→Slow w/ More Light
Change your F Stop to compensate for the light
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