Photography - Victim, Crime Scene, Night and the Moment in Time

Question 1

What is light?

Answer 1

A form of energy that travels in waves

Question 2

What three things are explained by the wave nature of light?

Answer 2

• Origin of colour
• How light travels
• What happens to light when it encounters different materials

Question 3

List the wavelength range of the visible portion of the EM spectrum.

Answer 3

400 to 700 nm

Question 4

What is the portion of the EM spectrum below 400 nm known as?

Answer 4

Ultraviolet

Question 5

What is the portion of the EM spectrum above 700 known as?

Answer 5

Infrared

Question 6

What are the three additive primaries and what do they do?

Answer 6

Red, green, blue
When all overlap, they produce white light.

Question 7

How are the subtractive primaries created?

Answer 7

Through overlap of the additive primaries

Question 8

What is the inverse law of light?

Answer 8

The intensity of the light is inversely proportional to the square of the distance travelled from the source.

Question 9

What is the law of reflectance?

Answer 9

The angle of incidence equals the angle of reflection.

Question 10

What does the amount of absorption of light depend on?

Answer 10

How dark or opaque the object is.

Question 11

Which type of surface absorbs more light: smooth or irregular surfaces?

Answer 11

Irregular

Question 12

What is refraction of light?

Answer 12

Bending of a light wave inside the object toward the normal line.

Question 13

What is the normal line?

Answer 13

Imaginary straight line that runs perpendicular to the object

Question 14

What do photographic lenses rely on to focus an image within a camera?

Answer 14

Refraction

Question 15

What is scattered-diffues reflection?

Answer 15

When light hits a rough surface, it is reflected all sorts of angles.
When this happens, it causes the light to become soft and diffused.

Question 16

When is scattered diffusion relied upon?

Answer 16

When directing a light source off of a rough surface to create a softer and less harsh light.

Question 17

Why is the sky blue?

Answer 17

When blue light tries to go through O and H molecules, its light is scattered in all directions. Blue in the sky is the scatter blue light.

Question 18

Why are sunsets red?

Answer 18

The distance the sunlight has to travel to Earth is greatest at sunrise and sunset. During this travel, most of the blue has already been scattered to the light received is mostly red.

Question 19

What is daylight film colour balanced for?

2

Answer 19

Noon sunlight and electronic flash

Question 20

What type of lights are sunlight and tungsten light bulbs?

Answer 20

Full spectrum lights

Question 21

What is the colour temperature of sunlight?

Answer 21

5500 K

Question 22

What is the colour temperature of tungsten light bulbs?

Answer 22

3200 K

Question 23

What is the purpose of white balance in DSLR cameras?

Answer 23

Colour correction

Question 24

What is available light?

Answer 24

Refers to both natural and artificial lighting that illuminates a scene.

Question 25

What is the purpose of victim photography?

Answer 25

To provide documented record of the victim and their injuries.

Question 26

List the current types of photos required provincially for victim photography.

Answer 26

Overall Midrange Closeup with scale

Question 27

List the types of photos taken for victim photography used in class.

Answer 27

Overall Midrange Close-up with scale Close-up without scale

Question 28

What is included in an overall victim photograph?

Answer 28

Victim from head to toe

Question 29

What is photographed in a midrange victim photograph?

Answer 29

Head and shoulders or image of injury and surrounding area.

Question 30

What is photographed in close-up victim photography.

Answer 30

Injuries with and without scale

Question 31

Where should a victim stand for vicitm photography?

Answer 31

1 m away from wall

Question 32

Why should victims stand 1 m away from the wall?

Answer 32

Ensure even lighting and to avoid shadows

Question 33

What should be considered during victim photography? | 5

Answer 33

* Explain why photos are being taken, for what purpose and the limitations * Maintain a reactionary gap * Victim can assist * Be respectful * Perspective

Question 34

Why is crime scene photography important? | 3

Answer 34

* Used as an investigative tool * AIds in describing scene to the courts * Photos become part of your notes for refreshing your memory

Question 35

What characteristics must be present in crime scene photography? | 3

Answer 35

* Proper exposure * Sufficient DoF * Sharp

Question 36

Outline the series of crime scene photos taken in order.

Answer 36

Scene establishing Overall scene Object of interest (midrange)

Question 37

What are some tips to consider for crime scene photography? | 4

Answer 37

* Keep back of camera parallel to the subject * Photograph as much as you can at eye level * Keep camera level and steady, using a tripod whenever possible * Take notes