Forensic Photography exam questions and answers fully solved
PHOTOGRAPHY - AnswersIt is an art or science, which deals with the reproduction of images
through the action of light, upon sensitized materials with the aid of a camera and accessories
and the chemical process involved therein.
read - AnswersFull Stops
f1.4 f/2 f/12.8. f/4. f/5.6. f/8 f11. f16. f/22
** Following the scale above, if we adjust the aperture 1 full stop from a high f-no. (smaller
opening) to a low f-no. (Larger opening), we INCREASE THE AMOUNT OF LIGHT HALF of the
previous setting and vice versa, if we adjust the aperture 1 full stop from a low f-no. (larger
opening) to a highf-no (small opening), WE REDUCE THE AMOUNT OF LIGHT HALF of the
previous setting. For example, we adjust the aperture from f-5.6 to f-4; the image at f-4 is half
brighter than that of f-5.6.
1)PHOTO
2)GRAPHY (graphos) - AnswersThe word photography was derived from the two Greek terms
__1__ which means light and __2__ which means to write. Thus, literally, photography means
to "draw with light ,writing with light."
- AnswersFunctions of the Aperture
Manipulating the size of the aperture enables the photographer to control the following:
- The amount of Light - The smaller the lens opening, meaning higher f-number, the lesser the
light that will enter the camera and viceversa
- The Depth of Field (DOF) the smaller the aperture (high f-number), the Longer or the deeper
depth of field and the larger the aperture (low f-number), the shorter or shallow depth of field.
1. Camera (light tight box)
2. Light/
3. Image/subject
4. Chemical process or development
5. Sensitized materials (film and photographic paper) - AnswersEssential Elements of
Photography (CLICS)
,From the definition above, we can derive the elements of photography. It states that before a
photograph can be produced, the following must come together:
Depth of field
The DOF can either be shallow or deep. - Answersis the amount of distance between the
nearest and farthest objects in a scene that appear sharp in the image.
POLICE PHOTOGRAPHY - AnswersThe science which deals with the study of the principles of
photography and the preparation of photographic evidence and its application to police work.
Short or Shallow DOF - AnswersDOF
it means that less objects are in focus. It is either the foreground (front) orbackground is in
focus. This is used if emphasis is needed.
Forensic Photography - AnswersTYPES OF PHOTOGRAPHY.
- the process of photographing crime scene or any other objects for court presentation.
Long or Deep DOF - AnswersDOF
- it means that more objects are in focus. The foreground and the background
are acceptably sharp.
Infra-red Photography - AnswersTYPES OF PHOTOGRAPHY.
- the art or process of photographing or recording unseen objects by means of infra-red light.
This is usually used in photographing dirty documents, burnt documents, obliterated/altered
document, and in some cases blood spilled in dark surfaces.
read - AnswersTabular presentation of the effect of Aperture to the Photograph
F-number/ Aperture size/ Amount of light/ Depth of Field
High f-number / Small / less light / Deep DOF
Low f-no. / Large / More light ) shallow DOF
Microphotography - AnswersTYPES OF PHOTOGRAPHY.
- producing a very small photograph as encountered in microfilming or with use of micro film.
,read - AnswersWhat are the ways of altering the DOF?
Depth of field can be altered by adjusting either of thefollowing: (CAF)
- Camera- subject distance
- Aperture size
- Focal length (of the lens)
Photomacrography - AnswersTYPES OF PHOTOGRAPHY.
- photographing of objects directly enlarged on the negative and magnified from 1-9 times.
Altering the DOF by adjusting aperture - Answers- This is the most common and practically
accepted way of altering DOF as it does not affect the angle of view of the camera.
- The smaller the aperture opening, the deeper the DOF; the bigger the aperture opening, the
shallow the DOF
Spectrograph - AnswersTYPES OF PHOTOGRAPHY.
- a process used in determining the kind of metals submitted for examination. (i.e.poisoning)
Focal length - Answersrefers to the distance between the optical center of the lens and the focal
plane or film plane (where the light rays are
focused).
Photomicrography - AnswersTYPES OF PHOTOGRAPHY.
- the art of photographing minute objects when maqnified by means of a microscope and
enlarged from 10 times and up.
read - AnswersAltering the DOF by Adjusting Focal Length:
- Focal length refers to the distance between the optical center of the lens and the focal plane
or film plane (where the light rays are
focused). It is measured in millimeters (mm).
- The shorter the lens focal length, the deeper the DOF. The Longer the Lens Focal Length, the
shallow the DOF.
Ultra-violet Photography - AnswersTYPES OF PHOTOGRAPHY.
- the art or process of photographing or recording unseen objects by means of ultra-violet light.
This is usually applied in consortium with the UV lamp to reveal unseen objects. (i.e.
fluorescence of paper)
, read - AnswersAltering the DOF by adjusting the camera- subject distance:
- The farther the shooting distance, the deeper DOF; the closer the shooting distance, the
shallow DOF.
X- ray Photography - AnswersTYPES OF PHOTOGRAPHY.
- the process of photographing or recording intemal structure of the body
read - AnswersSummary of DOF
DOF / Aperture / Focal length / Distance
Short DOF / Large / Long Focal length / Close Distance
Long DOF / Small / Short Focal length / Far Distance
Flash Photography - AnswersOTHER TYPES OF PHOTOGRAPHY.
- exposures are made with illumination (flash) from one or more photograph.
Shutter Speed - Answers- refers to how long in time the shutter is held open during the taking of
photograph. It is controlled by the shutter speed dial. (command dial in DSLR)
- It regulates the amount of time that light reaches the film and is measured in seconds.
Aerial Photography - AnswersOTHER TYPES OF PHOTOGRAPHY.
- applied for photo mapping
read - Answers- Shutter speed setting may range from "B" (Bulb),1, 1/2, 1/4 , 1/8", 1/15", 1/30",
1/60", 1/125", 1/250",1/500, 1/1000", 1/2000" to 1/4000 sec, (depends upon the camera used)
- B- for bulb setting, meaning the shutter remains open as long as the shutter release button is
pressed.
- The above shutter speeds are the FULL STOPS. Intermediary numbers can be found.
- Like the aperture, if we adjust the shuter speed 1 full stop from a FAST SHUTTER SPEED (higher
denominator in fraction) to a SLOW SHUTTER SPEED (lower denominator in fraction) we
INCREASE the amount of light half of the previous setting and vice versa. (i.e. SS 1/500 sec to
SS1/250 sec- the image at 1/250 sec is half brighter than that of 1/500 sec.)
Thermo Photography - AnswersOTHER TYPES OF PHOTOGRAPHY.
PHOTOGRAPHY - AnswersIt is an art or science, which deals with the reproduction of images
through the action of light, upon sensitized materials with the aid of a camera and accessories
and the chemical process involved therein.
read - AnswersFull Stops
f1.4 f/2 f/12.8. f/4. f/5.6. f/8 f11. f16. f/22
** Following the scale above, if we adjust the aperture 1 full stop from a high f-no. (smaller
opening) to a low f-no. (Larger opening), we INCREASE THE AMOUNT OF LIGHT HALF of the
previous setting and vice versa, if we adjust the aperture 1 full stop from a low f-no. (larger
opening) to a highf-no (small opening), WE REDUCE THE AMOUNT OF LIGHT HALF of the
previous setting. For example, we adjust the aperture from f-5.6 to f-4; the image at f-4 is half
brighter than that of f-5.6.
1)PHOTO
2)GRAPHY (graphos) - AnswersThe word photography was derived from the two Greek terms
__1__ which means light and __2__ which means to write. Thus, literally, photography means
to "draw with light ,writing with light."
- AnswersFunctions of the Aperture
Manipulating the size of the aperture enables the photographer to control the following:
- The amount of Light - The smaller the lens opening, meaning higher f-number, the lesser the
light that will enter the camera and viceversa
- The Depth of Field (DOF) the smaller the aperture (high f-number), the Longer or the deeper
depth of field and the larger the aperture (low f-number), the shorter or shallow depth of field.
1. Camera (light tight box)
2. Light/
3. Image/subject
4. Chemical process or development
5. Sensitized materials (film and photographic paper) - AnswersEssential Elements of
Photography (CLICS)
,From the definition above, we can derive the elements of photography. It states that before a
photograph can be produced, the following must come together:
Depth of field
The DOF can either be shallow or deep. - Answersis the amount of distance between the
nearest and farthest objects in a scene that appear sharp in the image.
POLICE PHOTOGRAPHY - AnswersThe science which deals with the study of the principles of
photography and the preparation of photographic evidence and its application to police work.
Short or Shallow DOF - AnswersDOF
it means that less objects are in focus. It is either the foreground (front) orbackground is in
focus. This is used if emphasis is needed.
Forensic Photography - AnswersTYPES OF PHOTOGRAPHY.
- the process of photographing crime scene or any other objects for court presentation.
Long or Deep DOF - AnswersDOF
- it means that more objects are in focus. The foreground and the background
are acceptably sharp.
Infra-red Photography - AnswersTYPES OF PHOTOGRAPHY.
- the art or process of photographing or recording unseen objects by means of infra-red light.
This is usually used in photographing dirty documents, burnt documents, obliterated/altered
document, and in some cases blood spilled in dark surfaces.
read - AnswersTabular presentation of the effect of Aperture to the Photograph
F-number/ Aperture size/ Amount of light/ Depth of Field
High f-number / Small / less light / Deep DOF
Low f-no. / Large / More light ) shallow DOF
Microphotography - AnswersTYPES OF PHOTOGRAPHY.
- producing a very small photograph as encountered in microfilming or with use of micro film.
,read - AnswersWhat are the ways of altering the DOF?
Depth of field can be altered by adjusting either of thefollowing: (CAF)
- Camera- subject distance
- Aperture size
- Focal length (of the lens)
Photomacrography - AnswersTYPES OF PHOTOGRAPHY.
- photographing of objects directly enlarged on the negative and magnified from 1-9 times.
Altering the DOF by adjusting aperture - Answers- This is the most common and practically
accepted way of altering DOF as it does not affect the angle of view of the camera.
- The smaller the aperture opening, the deeper the DOF; the bigger the aperture opening, the
shallow the DOF
Spectrograph - AnswersTYPES OF PHOTOGRAPHY.
- a process used in determining the kind of metals submitted for examination. (i.e.poisoning)
Focal length - Answersrefers to the distance between the optical center of the lens and the focal
plane or film plane (where the light rays are
focused).
Photomicrography - AnswersTYPES OF PHOTOGRAPHY.
- the art of photographing minute objects when maqnified by means of a microscope and
enlarged from 10 times and up.
read - AnswersAltering the DOF by Adjusting Focal Length:
- Focal length refers to the distance between the optical center of the lens and the focal plane
or film plane (where the light rays are
focused). It is measured in millimeters (mm).
- The shorter the lens focal length, the deeper the DOF. The Longer the Lens Focal Length, the
shallow the DOF.
Ultra-violet Photography - AnswersTYPES OF PHOTOGRAPHY.
- the art or process of photographing or recording unseen objects by means of ultra-violet light.
This is usually applied in consortium with the UV lamp to reveal unseen objects. (i.e.
fluorescence of paper)
, read - AnswersAltering the DOF by adjusting the camera- subject distance:
- The farther the shooting distance, the deeper DOF; the closer the shooting distance, the
shallow DOF.
X- ray Photography - AnswersTYPES OF PHOTOGRAPHY.
- the process of photographing or recording intemal structure of the body
read - AnswersSummary of DOF
DOF / Aperture / Focal length / Distance
Short DOF / Large / Long Focal length / Close Distance
Long DOF / Small / Short Focal length / Far Distance
Flash Photography - AnswersOTHER TYPES OF PHOTOGRAPHY.
- exposures are made with illumination (flash) from one or more photograph.
Shutter Speed - Answers- refers to how long in time the shutter is held open during the taking of
photograph. It is controlled by the shutter speed dial. (command dial in DSLR)
- It regulates the amount of time that light reaches the film and is measured in seconds.
Aerial Photography - AnswersOTHER TYPES OF PHOTOGRAPHY.
- applied for photo mapping
read - Answers- Shutter speed setting may range from "B" (Bulb),1, 1/2, 1/4 , 1/8", 1/15", 1/30",
1/60", 1/125", 1/250",1/500, 1/1000", 1/2000" to 1/4000 sec, (depends upon the camera used)
- B- for bulb setting, meaning the shutter remains open as long as the shutter release button is
pressed.
- The above shutter speeds are the FULL STOPS. Intermediary numbers can be found.
- Like the aperture, if we adjust the shuter speed 1 full stop from a FAST SHUTTER SPEED (higher
denominator in fraction) to a SLOW SHUTTER SPEED (lower denominator in fraction) we
INCREASE the amount of light half of the previous setting and vice versa. (i.e. SS 1/500 sec to
SS1/250 sec- the image at 1/250 sec is half brighter than that of 1/500 sec.)
Thermo Photography - AnswersOTHER TYPES OF PHOTOGRAPHY.
