1

Question 1

is the science which deals with the study of principles of photography and the
preparation of photographic evidence

Answer 1

Police photography

Question 2

is the legal guiding principle.

Answer 2

no evidence, no case

Question 3

the general rule in taking crime scene photographs

Answer 3

Take many photographs and select the best

Question 4

is an art form as used by the pictorialist who may purposely make a photograph slightly
out of focus to create a mood.

Answer 4

Photography

Question 5

the first camera

Answer 5

Camera obscura

Question 6

He found that bitumen of Judea, a compound that hardens when exposed to light, could produce negatives

Answer 6

Joseph Nicephore Niepce

Question 7

A forerunner to the earliest photographic process, invented by
Niepce in 1822. It entails using bitumen, a material that hardens and
becomes insoluble in light. He hoped to use this process to transfer images to be printed on apress.

Answer 7

Heliography

Question 8

A French inventor, who, after collaborating with Niepce, devised the first practicable photographic process. Also known as the FATHER OF PHOTOGRAPHY

Answer 8

Louis Jacques Mande Daguerre

Question 9

An early photographic process using silver coated, light-sensitive
metallic plates developed by mercury vapor.

Answer 9

Daguerreotype

Question 10

The inventor of the positive-negative photographic process

Answer 10

William Henry Fox Talbot

Question 11

He discovered that thiosulphate of soda, the chemical now referred as “Hypo”,would fix images on
photosensitive paper by stopping the chemical action of
silver salts.

Answer 11

Frederick William Herschel

Question 12

The chemical, still in use and known as

Answer 12

Fixer / Sodium thiosulfate / Hypo

Question 13

he invented a wet-plate collodion photography or wet-plate process now known as
Archerotype, by which finely detailed glass negatives
were produced

Answer 13

Frederick Scott Archer

Question 14

is an early method for producing glass negatives. The procedure began with the
use of a sticky substance that could hold the silver that produces a photographic image

Answer 14

Collodion process

Question 15

An English physician who took Archer’s discovery a step further with his “dry plate” process, which used an
emulsion or gelatin and silver bromide or a glass
plate.

Answer 15

Richard Leach Maddox

Question 16

He introduced the Kodak box camera in 1888 with the promotional slogan “You press the button, we do the
rest

Answer 16

George Eastman aka. Mr. Kodak

Question 17

An American inventor in 1947 , he invented
instant photography and introduced the first
Polaroid camera
, which produced a sepia
monochrome print in just 60 seconds

Answer 17

Dr. Edwin H. Land

Question 18

Is a form of energy which
makes it possible to see. The radiant
energy that makes things visible.

Answer 18

Light

Question 19

299 ,793 kilometers
per second or 186 ,000 miles per
second

Answer 19

Speed of Light

Question 20

Electromagnetic radiation
that can be perceived by the normal,
unaided humaneye and has
wavelengths between 3 ,900 and 7 ,
700 angstroms

Answer 20

Visible

Question 21

is only a tiny
fraction of the electromagnetic
spectrum.

Answer 21

Visible light

Question 22

These are
radiations having a wavelength
between 400 -700

Answer 22

visible rays

Question 23

These are
radiations having a wavelength
between 700 -
1 ,000 millimicrons or nanometer.
- It also referred to as heat rays or
heat wave.

Answer 23

Infrared rays

Question 24

The two main sources of light

Answer 24

Natural light and Artificial Light

Question 25

It refers to the daylight coming from the sun, which is in general utilized for outdoor photography.

Answer 25

Natural Light

Question 26

Classification of daylight according to its intensity

Answer 26

Bright light Hazy light Dull light

Question 27

A lighting condition wherein objects in open space cast a deep or uniform shadow.

Answer 27

Bright light

Question 28

A lighting condition wherein the objects in open space cast a transparent shadow.

Answer 28

Hazy light

Question 29

A lighting condition wherein the objects in open space cast no Shadow.

Answer 29

Dull light

Question 30

It refers to those lights, which are man-made.

Answer 30

Artificial light

Question 31

The basic parts of camera

Answer 31

Light tight box Lens Shutter Film holder Viewfinder

Question 32

The frame of the camera in which all other parts are mounted.

Answer 32

Light tight box

Question 33

A medium which converges or diverges light passing through it to form images.

Answer 33

Lens

Question 34

The device that regulates the amount of time that light reaches the film.

Answer 34

Shutter

Question 35

An essential part of a camera which is designed to hold the film in place at the back of the camera so that the image produced by the lens will be sharp over the whole picture area.

Answer 35

Film holder

Question 36

The optical window used to view the subject being photographed

Answer 36

View finder

Question 37

Different types of camera

Answer 37

Single lens reflex (SLR) camera Twin lens reflex (TLR) camera Compact camera Digital camera View Camera Polaroid camera Spy camera Infrared camera Pinhole Camera Disposable Camera Cellphone Camera

Question 38

is the ideal type of camera available for police photography due to its versatility, compactness, and interchangeability of camera lens

Answer 38

Single Lens Reflex Camera

Question 39

The three basic controls of camera

Answer 39

Focusing control Aperture Shutter Speed

Question 40

Three-legged device used to support or hold the camera duringexposure, particularly when using a slower shutter speed.

Answer 40

Tripod

Question 41

A flexible cable that screws into the shutter release, used to prevent camera movement

Answer 41

Cable Release

Question 42

is a form of photography that uses digital technology to capture, store, and transfer images.

Answer 42

Digital Photography

Question 43

Is the process of photographing or recording the crime scene or any objects for court presentation

Answer 43

Forensic photography

Question 44

FUNCTIONS OF PHOTOGRAPHY IN INVESTIGATIVE WORK

Answer 44

Identification Communication and microfilm files Evidence Action of offenders Court Exhibits Crime prevention Public Relations Police Training Reproduction and copying

Question 45

This is done by simply soaking the film in water for 2 to 3 minutes while agitating the water container for every 20 seconds.

Answer 45

Pre developing water rinse

Question 46

The process of converting the exposed image on the film into actual image

Answer 46

Developing

Question 47

The removal of the traces of the developer as well as it helps in the removal of excess or undeveloped silver halides

Answer 47

stop bat

Question 48

This is the final part of the processing cycle, which removes the residual chemicals and soluble silver compounds from the emulsion and reveals the image

Answer 48

Washing

Question 49

The most important chemical in any developing agent.

Answer 49

Reducing Agent

Question 50

The purposes of accelerators are to energize the reducing agents and they soften and swellthe emulsion to permit the developer to penetrate deeply and quickly.

Answer 50

Accelerators

Question 51

The three kinds of accelerators are

Answer 51

Sodium carbonate Sodium hydroxide Borax

Question 52

The commonly used preservative

Answer 52

Sodium sulfite

Question 53

A developer for prints. It produces a very high contrast film

Answer 53

Type A (D-72)

Question 54

It is suitable for developing film exposed under dull or hazy lighting conditions.

Answer 54

Type B (D-19)

Question 55

The so called "Normal Developer . Used for developing films exposed under normal lighting conditions

Answer 55

Type C (D-50)

Question 56

used to reduce excessive lighting contrast

Answer 56

Type D (D-76)

Question 57

Otherwise known as "hypo" . It dissolves the unexposed silver halides.

Answer 57

Sodium Thiosulfate

Question 58

It is the accidental exposure of film to light.

Answer 58

Fogging

Question 59

Using three exposures with the use of the manual control if in doubt of the amount of light appropriate for one shoot.

Answer 59

Bracketting

Question 60

is the process whereby light is transmitted through the negative to produce a like positive image

Answer 60

Printing

Question 61

is made by placing a sheet of printing paper in direct contact with a negative , emulsion to emulsion

Answer 61

Contact Printing

Question 62

the negative image is projected onto a photographic paper by meansof enlarger machine

Answer 62

Projection Printing