Sensitometry

Question 0

2 scientist introduced sensitometry

Answer 0

Hurter

Driffield

Question 1

Science of evaluating the perfomance of photographic materials

Answer 1

Sensitometry

Question 2

Requires photographic emulsion be exposed to specified light source

Answer 2

Sensitometry

Question 3

Plot of the density vs. amount of exposure

Answer 3

Characteristic curve

Question 4

Characteristic curve is also called

Answer 4

Sensitometric curve
H&D curve
D log E curve

Question 5

Exposure is plotted on

Answer 5

X-axis

Question 6

Density is plotted on

Answer 6

Y-axis

Question 7

Curves always assumes some form of

Answer 7

S or Sigmoid shape

Question 8

Basis of sensitometry

Answer 8

Density

Question 9

Density has a log value of

Answer 9

0-4

Question 10

Density of 1

Answer 10

10% light transmission

Question 11

Density of 2

Answer 11

1% light transmission

Question 12

Density of 3

Answer 12

0.01% light transmission

Question 13

Shaped like a step wedge to produced an exact and regular increase or decrease in exposure

Answer 13

Aluminum step-wedge / penetrometer

Question 14

Prints a pre-exposed negative directly onto the film

Answer 14

Sensitometer

Question 15

Measures the optical density of a portion of an image using a 0-4 scale

Answer 15

Densitometer

Question 16

The recorded density of the base and recorded density of the chemical fog

Answer 16

Basic fog

Question 17

Absorbed longer exposed of film

Answer 17

Blue tint

Question 18

Basic fog value should not exceed

Answer 18

0.25

Question 19

Ponit where the film shows a reaction to expose

Answer 19

Threshold

Question 20

Area rapidly increasing density

Answer 20

Toe

Question 21

Carries a very large amount of information

Answer 21

Straight line portion

Question 22

Straight line portion parts

Answer 22

True gamma
Average gradient
Latitude
Speed

Question 23

Where first reaction to exposure begins to falls off

Answer 23

Shoulder

Question 24

Max density which can be reached on the film

Answer 24

Max density

Question 25

Caused by the silver halide grain not being absorbed

Answer 25

Region solarization

Question 26

Equal to the slope of the straight line portion

Answer 26

Gamma

Question 27

True value of average contrast available on the film

Answer 27

Average gradient

Question 28

Useful exposure range of the film

Answer 28

Latitude

Question 29

Range of exposure value drawn from the intercepts of 2 net densities

Answer 29

Latitude

Question 30

Latitude is linked to the

Answer 30

Average gradient

Question 31

Defined by ANST, exposure required to produce a net densities

Answer 31

Speed

Question 32

Means that one film os 100% higher in speed than other (separation of log)

Answer 32

0.3