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FORENSIC > CHAPTER 7 > Flashcards

CHAPTER 7 Flashcards

1
Q

Structure of Photographic Paper:

A
  1. Emulsion Layer
  2. Baryta Layer
  3. Base
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2
Q

This refers to layer of photographic paper that CONTAINS SILVER HALIDES suspended in gelatine

A

Emulsion Layer

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3
Q

This refers to layer of photographic paper that is a gelatine layer containing BARITE CRYSTALS to increase the reflectivity of the paper

A

Baryta Layer

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4
Q

the layer that makes the FILM GLOSSY

A

Baryta Layer

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5
Q

barite crystals ALSO KNOWN

A

barium oxide

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6
Q

This refers to layer of photographic paper that is MADE OF HARD PAPER which must be chemically pure; chemical content does not change or react with light or other chemicals during printing.

A

Base

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7
Q

It is the FOUNDATION OF THE PHOTOGRAPHIC PAPER

A

Base

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8
Q

This refers to the combination of its TEXTURE AND FINISH

A

Surface

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9
Q

It maybe SMOOTH FINE grained, or rough

A

TEXTURE

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10
Q

IT maybe GLOSSY (semi – matt) and MATT

A

FINISH

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11
Q

Coating:

A
  1. Resin – coated (RC) papers
  2. Fiber – based Papers
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12
Q

This refers to coating that is made up by using a layer
of paper which is COATED BOTH SIDE WITH A SYNTHETIC POLYMER, usually polyethylene; forms the base on to which the emulsion is coated.

A

Resin – coated papers

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12
Q

This refers to COATING THAT CAN BE AIR DRIED, needs large
volumes of water for effective washing that can be reduced with washing aid

A

Fiber – based Papers

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13
Q

Types Based on Emulsion Used:

A
  1. Silver Chloride Papers
  2. Silver Bromide Papers
  3. Silver Chlorobromide
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14
Q

This refers to types based on EMULSION WITH SLOW EMULSION SPEDD

A

Silver Chloride Papers

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15
Q

IMAGE SIZE IS THE SAME as that
of the negatives;

A

Contact printing

16
Q

This refers to types based on EMUSTION WITH FAST EMULSION SPEED

A

Silver Bromide Papers

17
Q

they give BLACK TONES IN METAL hydroquinone developers and take about 1 ½ minutes to develop at 18 – 20 degrees C

A

Silver Bromide Papers

18
Q

they give BLUE BLACK TONES in a 65 – 68 degrees F to develop

A

Silver Chloride Papers

19
Q

give NEUTRAL TO COLD BLACK TONE which is only affected by development type and techniques.

A

Silver Bromide Papers

20
Q

they give an image tone from WARM BLACK TO REDDISH BROWN, depending on length of exposure, type, dilution and duration of developer.

A

Silver Chlorobromide

20
Q

This refers to types based on EMULSION THAT THE SLOW USE FOR CONTACT and the fast is used for enlargement/projection printing

A

Silver Chlorobromide

21
Q

Grades of Printing Papers:

A
  1. Velox # 0
  2. Velox # 1
  3. Velox # 2
  4. Velox # 3
  5. Velox # 4
  6. Velox # 5
22
Q

This refers to grades of printing papers for EXTREME CONTRAST NEGATIVE; the low contrast in the sensitized paper counteracts the high contrast in the negative, to give
a new print.

A

Velox # 0

23
Q

This refers to grades of printing papers for HIGH CONTRAST NEGATIVE

A

Velox # 1

24
Q

This refers to grades of printing papers for printing NORMAL CONTRAST negatives.

A

Velox # 2

25
Q

This refers to grades of printing papers for negatives that HAVE WEAK CONTRAST

A

Velox # 3

26
Q

This refers to grades of printing papers that provides SUFFICIENT CONTRAST to compensate for every weak contrast;

A

Velox # 4

27
Q

This refers to grades of printing papers for FLAT NEGATIVES that are relatively unprintable.

A

Velox # 5

28
Q

Paper Weight:

A
  1. Light Weight
  2. Single Weight
  3. Double Weight
29
Q

This refers to paper weight that is intended for
PURPOSES WHICH INVOLVE FOLDING

A

Light Weight

30
Q

This refers to paper WEIGHT FOR LARGE PRINTS because
they stand up better rough treatment

A

Double Weight

30
Q

This refers to paper weight for ALL ORDINARY PHOTOGRAPHIC PURPOSES

A

Single Weight

FORENSIC (9 decks)

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