Crime Scene Photography Flashcards

1
Q

What is a photo identifier?

A

The first photo taken which states:

  • case number -address/location
  • date/time -the photographer name
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2
Q

What is a labeled scale?

A

A scale that contains the info from the photo identifier

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3
Q

Where should a scale be positioned?

A

They should be in the same plane as the evidence.

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4
Q

Why is it important to have a scale in the same plane as the eveidence?

A

Because if it isn’t the image will show a skewed measurement.

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5
Q

What does fill the frame mean?

A

make the primary subject as large as possible

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6
Q

What should be avoided to have good photo composition?

A
  • clutter
  • unnecessary detail
  • distractions in image
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7
Q

How do you clear unnecessary foreground elements?

A

tilt the camera up

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8
Q

How do you clear unnecessary background elements?

A

tilt the camera down

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9
Q

How do you eliminate distractions on the left and right of a photo?

A

Switch to a vertical photograph

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10
Q

How do you avoid shadows?

A

block the sun with your body or another person

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11
Q

What is a flash shadow?

A

a shadow made from the camera flash

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12
Q

What is a hard shadow?

A

flash produced shadows that are so dark detail cannot be seen in shadowed area

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13
Q

What is a soft shadow?

A

the shadow is still present but details can be seen in the shadowed area

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14
Q

What is lens flare?

A

when the sun is positioned in front of the photographer and sunlight is coming directly into the lens and reflecting

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15
Q

What is a lens hood?

A

an attachment for the camera that blocks the sun rays

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16
Q

What is natural perspective?

A

photographer is standing at full, natural height, viewing the scene or area as anyone would have seen it if they were standing there too

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17
Q

What is aerial photography?

A

images captured while standing on bridges or buildings while looking down at crime scene below

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18
Q

What should be done if the subjects exit path is found?

A

the path should be photographed and followed as it might lead to dropped evidence

19
Q

What should be done after exterior overall photos?

A

document all paths from doors and windows towards areas within the structure where items have been disturbed

20
Q

What is considered “normal” focal length?

A

50mm

21
Q

What is an extension tube?

A

a supplemental lens that fits between the camera body and normal lens

22
Q

How many close-ups should you take for each piece of evidence?

A

at least 2

One without scale and one with a fully labeled scale

23
Q

What steps should be taken when photographing a wound/bruise?

A

Take a midrange of the body part where the wound/bruise is and then take 2 close ups one with and without scale.

24
Q

How do you photograph a body?

A

Photograph the body from all 4 sides (heel to crown, crown to heel, right, and left sides)
5th photo taken is of the full face

25
Q

What should your lens setting (focal length) be for a face photograph?

A

100-120 mm and keep camera back to avoid enlarging the facial features

26
Q

What is depth of field (DOF)?

A

the variable range from foreground to background, of what appears to in sharp focus

27
Q

What F/stop setting provide the best DOF?

A

F/stops with smallest aperture

28
Q

What lens (focal length) has the best DOF?

A

wide angle lens

29
Q

How does distance from camera to subject effect DOF?

A

camera farther- longer DOF

camera closer- shorter DOF

30
Q

If the light is bright should your aperture be small or large?

A

bright light=smaller opening

darker light= larger opening

31
Q

How is aperture denoted?

A

f/stop numbers

32
Q

What does f/stop refer to?

A

the intensity of light striking the film surface NOT a specific diameter of lens aperture opening

33
Q

Which aperture setting is a larger opening, f/32 or f/1.8?

A

f/1.8

the smaller the f/stop number the larger the opening

34
Q

What is shutter speed?

A

the length of time light passes through the lens to strike the film

35
Q

Which shutter speed is faster, 1/250th or 1/60th?

A

1/250th because it is a smaller number

36
Q

What denotes film speed?

A

ISO number

37
Q

If the ISO is higher how does that effect film sensitivity?

A

The film will be more sensitive to light

38
Q

What would be the best ISO setting on a sunny day?

A

100

39
Q

What would be the best ISO setting for nighttime or indoors?

A

400

40
Q

What 3 things effect DOF?

A

focal length
aperture
distance from object

41
Q

What does it mean to bracket an image?

A

To take a properly exposed photo and then 2 subsequent photos from the same POV but 1 is intentionally overexposed and 1 is intentionally underexposed

42
Q

Why would you bracket an image?

A

1) lighting at scene may be problematic and exposure might not be “proper”
2) when the subject is candidate for examination quality image

43
Q

What types of flash lighting can be used?

A

Bounced
direct
diffused