Ch 3 - Reproducing the Frame

Question 1

mathematical angle of a lens’ field of view (normal, wide, or narrow)

Answer 1

angle of view

Question 2

measurement of adjustable opening in lens that allows light to pass through lens into camera

Answer 2

aperture

Question 3

computer chip used as imaging sensor in digital still or video camera

Answer 3

charge-coupled device (CCD)

Question 4

blurred point that results from light rays traveling through lens but not quite converging to single point

Answer 4

circle of confusion

Question 5

computer chip used as imaging device in digital still and video cameras with additional functionality

Answer 5

complementary metal-oxide semiconductor (CMOS)

Question 6

method of saving digital audio, video, and still images that involves removal of redundant content or reorganization of material and results in lower file sizes, increased transmission speeds, and sometimes reduced quality

Answer 6

compression

Question 7

end result of analog recording process based on direct relationship between original waves and recorded signal

Answer 7

continuous wave

Question 8

range of acceptable focus along camera/subject axis

Answer 8

depth of field

Question 9

digital version of SLR camera

Answer 9

digital single-lens reflex (DSLR)

Question 10

amount of a scene included in frame

Answer 10

field of view

Question 11

distance from optical center of glass elements of lens to image plane

Answer 11

focal length

Question 12

incremental settings on lens that indicate size of lens aperture

Answer 12

f-stops

Question 13

result of analog to analog transfer (dub) which creates amplification of noise and reduction in quality

Answer 13

generational loss

Question 14

part of camera where lens focuses light and image is created, most often film or computer chip

Answer 14

image plane

Question 15

rows that make up pixels separated into two fields; odd numbered rows scanned first, then even numbered rows

Answer 15

interlaced scanning

Question 16

adjustable opening in lens that allows light to pass through lens into camera

Answer 16

iris

Question 17

film that is exposed creates opposite image; positive print must be made from it

Answer 17

negative film

Question 18

focal length approximates field of human vision

Answer 18

normal lens

Question 19

short for picture element; smallest unit that makes up an image on a computer screen, TV monitor, or digital display, usually a colored dot

Answer 19

pixels

Question 20

all rows of pixels scanned in order from top row of frame down to bottom row

Answer 20

progressive scanning

Question 21

conversion of sampled signal to mathematical units

Answer 21

quantize

Question 22

clarity or sharpness of reproduced image

Answer 22

resolution

Question 23

film exposed in camera is processed twice, creating positive image

Answer 23

reversal film

Question 24

measurements of an analog signal that allow creation of digital stream of binary data (ones and zeroes)

Answer 24

sampling

Question 25

amount of light necessary to create properly exposed image (gain)

Answer 25

sensitivity

Question 26

mechanical or electronic functioning of a lens that allows light to strike image plane for set period of time in order to create frame of visual media

Answer 26

shutter

Question 27

length of time that each frame of media receives light through aperture

Answer 27

shutter speed

Question 28

type of camera where retracting mirror allows user to view what lens is seeing

Answer 28

single-lens reflex (SLR)

Question 29

lens with a long focal length that selects a small segment of what is in front of the lens and makes it seem closer and larger than it would to the eye

Answer 29

telephoto

Question 30

factor in amount of light lost as it travels to specific lens

Answer 30

t-stops

Question 31

type of lens with short focal length that takes in wide field of view; making objects in scene appear farther away than they would to the eye

Answer 31

wide angle