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RTA 211 - Production Theory > WEEK 3 > Flashcards

WEEK 3 Flashcards

1
Q

what are the 3 types of camera sensors?

A
  • film
  • analog
  • digital
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2
Q

what was the og camera sensor?

*hint on our body :)

A

human eye - the retina

  • light was registered by rods behind the retina
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3
Q

what are the 3 main colours of cone receptors!?

A

red green and blue

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4
Q

rods are sensitive to __________

A

light

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5
Q

cones are sensitive to ____________

A

colour

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6
Q

lights is registered by 2 different things what are they?

A

cones and rods!

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7
Q

gelatin solution, contains bromide and silver nitrate

A

film

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8
Q

in film: smaller crystals = more clean and ______ grain

more or less

A

less grain

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9
Q

in film: larger crystals = more sensitive to light and ______grain

more or less

A

more grain

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10
Q

what does CCD stadn for

A

charge coupled device

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11
Q

*invented 1969
*converts light into a voltage
*power hungry

A

CCD/charge coupled device

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12
Q

-Light hits silver crystals and when developed, block light to form images

-Only available sensitive for 2 color temps (indoor/daylight)

-NO WHITE BALANCE ADJUSTMENT

-Shooting on film lets you choose film stock with specific ISO

-Cheaper to purchase

A

FILM

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13
Q

the first camera began as ______&________

A

black and white

*then progressed to RGB color, used in studio

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14
Q
  • Converts intensity of light to a voltage
  • Amplifies it on sensor itself

-Captures things in line-by-line pattern (rolling shutter)

-Uses Bayer pattern filter: square of 4: 2 green, 1 blue, 1 red

A

CMOS (Complementary Metal Oxide Semiconductor)

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15
Q

used to adjust colours to match the colour of the light source so that white objects appear white

A

white balance

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16
Q

how sensitive camera is to light

A

iso/gain

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17
Q

what is gain measured in?

A

dB (0dB means zero gain number increases as gain increases)

18
Q

Cameras with higher base ISO are ______________ sensitivie to light

more or less

A

more (require less light to record well exposed, noiseless image)

19
Q

_________________ISO or gain from base setting (0dB) will decrease signal to noise ratio (results in noisier picture)

increasing or decreasing

A

increasing

20
Q

counted using number of pixels in an image

A

the resolution

21
Q

the process of turning each group of primary colours 2x2 into a single light and the colour resulting in a pixel

A

de-mosaic process

22
Q

larger the sensor ________ the depth of view

*smaller or larger

A

smaller or shallower

23
Q

dimensions of the frame shown (ratio of the rectangle)

A

aspect ratio

24
Q

what is the most common aspect ratio?

A

16:9

25
Q

explain frame rate?

A

nothing is actually moving its just frames per second

*Human eye only sees 12 fps, if faster than that our brain blurs images together

26
Q

Why don’t we use 24 fps in video/television?

A

Due to interlacing: splitting the image into 2 images, each containing half the info, played back in rapid succession

27
Q

what is the standard for frame rate PAL?

A

25 fps

28
Q

one field is scanned (odd lines first, then even lines), see them as single frame when played in rapid succession

A

interlaced

29
Q

each line is scanned top to bottom sequentially

A

progressive

30
Q

what is rec run in recording?

A
  • TC starts running when we hit record, stops when recording stops
  • Common in single cam production
31
Q

what is free run in recording?

A
  • TC is continuously running regardless of recording or not
  • Food for documentaries, etc with multi cam (set to time of day, can sync all videos)
32
Q

what type of equipment is this?

Adjustable legs
Heads- fluid and gear heads
Allows for pan and tilt motions
Fluid: ease and portability
Gear: allows for more precision, quick start and stop movements

A

TRIPOD

33
Q

what type of equipment is this?

allow for dolly in/out, truck left/right, and ped up/down

A

pedestals

34
Q

allow for dolly in/out, truck left/right and arc, have built in pedestals

A

dolly

35
Q

telescopic and non-telescopic, allows jib up/down

A

jib

36
Q

when cameras are genlocked their shutters all fire at the same time!

A

genlock

37
Q

rate at which frames are played back

A

timebase

38
Q

the rate at which frames are recorded

A

frame rate

39
Q

not enough chroma?

desaturated or saturated?

A

desaturated

40
Q

colourful :)

desaturated or saturated?

A

saturated baby ;)

RTA 211 - Production Theory (8 decks)

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