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Forensic Photography > Filters > Flashcards

Filters Flashcards

1
Q

A filter lightens tones similar to the filter color.
A filter darkens tones of object colored dissimilarity.

A

Filter Effects

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2
Q

We use Black and White Images with Filters to eliminate __ and __ aspects of evidence photos.

A

backgrounds and noisy aspects

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3
Q

Are vibrating lights or controlled lights because light travels in all directions.

A

Polarized light

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4
Q

These are discs of glass or negative which when placed in front of the camera lens stop one or another color of light from passing through in striking the film.

They change the balance of light.

These are used to change the composition of available light before allowing it to strike the film.

A transparent colored medium employed to regulate either the color or the intensity of the light used to expose the film.

A

Filter

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5
Q

What are filters usually made of?

A

Glass or Gelatin Materials

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6
Q

When is filters usually used? Is it used for police photography?

A

For Black and White Photography

No, but there are instances they use polarizing filters for traffic investigations

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7
Q

This blocks a polarized light and focus them to a certain plane.

A

Polarizing Filter

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8
Q

This are polarizers that works on manual systems without problems.

Reduces Haziness and Reflection.

Designed for use with AUTO-FOCUS SLR CAMERAS

A

Circular polarizers

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9
Q

These are used with most video and manual focus photo cameras.

They are not recommended for auto focus SLR cameras.

A

Linear Polarizer

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10
Q

When different colors enter a filter having a different color, it will ___ (darken or lighten) the color.

A

DARKEN

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11
Q

When similar color of light enters the filter having the same color, it will __ (darken or lighten) the color result.

A

Lighten

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12
Q

If the colors entering are what the filter lacks, color is ___.

A

absorbed

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13
Q

If the colors entering the filter are the same with its color, color is ___.

A

transmitted

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14
Q

Clear filter is also known as ___.

A

Window glass filters/ Optical flats

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15
Q

The only use of a this is to protect the front of the lens.

A

Clear Filter

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16
Q

This is used to reduce haziness created by ultraviolet light. It is mostly transparent to visible light, and can be left on the lens for nearly all shots. __ are often used for lens protection, much like clear filters.

A

UV filter

17
Q

A major use is to compensate for the effects of lighting not balanced for the film stock’s rated color temperature. The use of these filters has been greatly reduced by the widespread adoption of digital photography, since color balance problems are now often addressed with software after the image is captured, or with camera settings as the image is captured.

It will either convert or compensate filter.

A

Color Correction

18
Q

These are with odd reference number which is yellowish or orange, for lowering the color temperature of the light. Filters with even numbers are bluish and raise the color temperature. These set filters CHANGE A PARTICULAR LIGHT SOURCE by the amount required for a particular film type.

A

Color Conversion Filter

19
Q

These are best bought as gelatins of various tints and strengths. These allow you to “FINE TUNE” adjustments towards warmer or colder results due to batch variations, working conditions, non-standard light sources.

A

Color Compensation Filters

20
Q

These work by absorbing certain colors of light, letting the remaining colors through. They can be used to demonstrate the primary colors that make up an image. They are perhaps most frequently used in the printing industry for color separations, and again, use has diminished as digital solutions have become more advanced and abundant.

A

Color Subtraction Filters

21
Q

Filters are commonly used in black and white photography to manipulate contrast.

This is important in criminalistics since it enhances and gives more detail to a certain image.

A

Contrast Enhancement Filters

22
Q

Reduces Reflection and Haziness

A

Polarizer

23
Q

These can be used effectively when photographing blood in black and white. When used outdoors, it will make the sky or any blue objects appear WHITE in the photograph.

A

Blue filter

24
Q

Used in place of the blue filter for photographing blood often they work better than the blue filter.

A

Green filter

25
Q

It can be used to photograph white cars. The details of the car will stand out. They also cut through haze to certain extent and can be used with good results to photograph an accident on a hazy day.

A

Yellow filters

26
Q

A combination of particles such as dust, smoke, etc. which alters clarity of the photograph

A

Haze

27
Q

It is not a filter for ultraviolet photography rather it is a filter which screen out the violet end of the spectrum. When placed in front of a lens, it will not only improve most of the police photographer’s work but it will also prevent his lens from being scratched.

A

UV filter

27
Q

It is the correct filter for UV photography since it gives better definition of fine details.

A

Special 18A deep purple filter

28
Q

It is used to cut down light transmission. They do not otherwise affect the color or tonal quality of the scene. It polarizes reflected light from a non-metallic surface such as water and reduced reflection in the photograph. It is the only filter than can increase the blue saturation in the sky in a color photograph.

A

Polarizing filter

29
Q

Difference in the different tones (light or dark) in a photograph

A

Contrast

30
Q

Gives better images by adjusting light in different variation and alters color rendition

A

correction

31
Q

It obscures the clarity of the sky due to smoke, particle present in the atmosphere.

A

Haze

32
Q

Makes the sky darker

A

Polarizing filter

33
Q

What are the five filter classification?

A

Contrast
Correction
Haze
Sky
Polarizing Filter

Forensic Photography (3 decks)

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