Chap 5 Flashcards
This refers to COLORED DISKS OF GLASS OR GELATIN which are placed in front of the camera lens to improve the quality of pictures; homogenous mediums which absorb different wavelengths of electromagnetic energy; these are dyed gelatin sheets cemented between carefully selected glass.
FILTERS
This REFERS TO A THIN SHEET OF GELATIN dyed to the designed color and intensity. It is USED IN COLORED PHOTOS.
GELATIN
This REFERS TO A THIN SHEET OF GELATIN dyed to the designed color and intensity. It is USED IN COLORED PHOTOS.
GELATIN
This refers to components of filters that are made by SANDWICHING GELATIN between two sheets of colored glass.
GLASS SANDWICHES
This refers to DISCS OF OPTICAL GLASS DYED to the desired color while in the MELTED STAGE.
DYED GLASS
Components of Filters:
- GELATIN
- GLASS SANDWICHES
- DYED GLASS
Uses of Filters:
1.It can be used in two ways – TO MODIFY THE LIGHT FALLING ON THE SUBJECT (a filter over a light source) or to modify the light passing through the lens before it reaches the film; and
2.When it is placed over a lens, it does two things – IT LIGHTENS ITS OWN COLOR AND DARKENS COMPLEMENTARY COLORS.
This refers to photographic filters that are USED EFFECTIVELY WHEN PHOTOGRAPHING BLOOD. When used outdoors, a ________ WILL MAKE THE SKY, OR ANY BLUE OBJECT, APPEAR WHITE in the photograph.
BLUE FILTERS
This refers to photographic filters that ARE USED IN PLACE OF BLUE FILTERS for PHOTOGRAPHING BLOOD. Often, they WORK BETTER THAN BLUE FILTERS.
GREEN FILTERS
This refers to photographic filters that are USED TO PHOTOGRAPH WHITE CARS; the DETAILS OF THE CAR WILL STAND OUT.
YELLOW FILTERS
This refers to photographic filters that are USED TO SCREEN OUT THE VIOLET END OF THE SPECTRUM. It is placed in front of a lens and left there; it will not only IMPROVE MOST OF THE POLICE PHOTOGRAPHER’S WORK, it will also PREVENT THE LENS FROM BEING SCRATCHED.
ULTRAVIOLET OR UV FILTERS
This refers to photographic filters that are USED TO CUT DOWN LIGHT TRANSMISSION; it does not affect the tonal quality of the scene. They are also used to REDUCE THE LIGHT INTENSITY TO PREVENT OVEREXPOSURE.
NEUTRAL DENSITY FILTERS
This refers to a photographic filter that is USED PRIMARILY TO CONTROL LIGHT reflected from highly polished surfaces, metallic objects, and others. It is very USEFUL IN PHOTOGRAPHING MANY DIFFERENT VEHICLES IN AUTO ACCIDENTS. This is the only filter that can INCREASE THE BLUE SATURATION IN THE SKY in a color photograph without altering the remaining colors in the scene.
POLARIZING FILTERS
This refers to photographic filters that are USED TO REMOVE EXCESS BLUISHNESS from DISTANT VIEWS OUTDOORS.
HAZE AND SKYLIGHT FILTERS
This refers to photographic FILTERS THAT ARE CLEAR AT THE BOTTOM, graduating to a color at the top; recommended in a situation in which the SKY PART OF A SCENE IS MUCH BRIGHTER THAN THE FOREGROUND.
GRADUATED FILTERS
