Forensic photography - sometimes referred to as police photography, forensic imaging or crime scene photography. - is the art of producing an accurate reproduction f a crime scene or an accident using photography for the benefit of a court or to aid in an investigation.
Photography - is the art, science and practice of creating durable images by recording light. The word photography was derived from the Greek word "phos" - light and "graphe" - drawing.
Photograph - is an image created by light falling on a light-sensitive surface usually photographic film or electronic imager.
Sir John Herschel - made the word photography known to the world in a lecture before the royal society of London on 1839.
Camera - is a device that records and stores images.
History of camera
_Camera obscura - obscura means dark or darkened chamber room, is an optical device that projects an image of its surroundings on a screen. It is used in drawing and for entertainment and was one of the inventions that led to photography. The camera obscura is the forerunner to the photographic camera.
Basic Modern Camera Parts
1. Lens - the light enters through the lens, this is
where photo process begins.
2. View Finder - is what the photographer looks
through to compose and in many cases to focus,
3. Body - the basic most part of a camera. It is the
box that holds the film and the camera controls.
4. Shutter Release - is a button found on many
cameras used to take the picture.
5. Aperture - is a hole or an opening thorough which
light travels. The aperture affects the image's
exposure by changing the diameter of the lens
opening which control the amount of light reaching
the image sensor.
6. Image Sensor - converts the optical image to an
7. Memory Card - stores all the image information.
8. LCD Screen - typically replaced the view finder.
9. Flash - provide extra light during dim, low light
10. User Control
Exposure - total amount of light allowed to fall on the photographic medium during the process the of taking photograph.
Film Speed - is the measure of a photographic films sensitivity to light.
Shutter Cycle - is the process of the shutter opening, closing and resetting to where it is ready to open again.
Shutter - is a device that allows light to pass for a determined period of time for the purpose of exposing photographic film or light sensitive electronic sensor to light to capture a permanent image of a scene.
Red Eye Effect - is the common appearance of red pupils in color photographs of eyes. It occurs when using a photographic flash very close to the camera lens in ambient low light.
Photographic Emulsion - is a light sensitive colloid such as gelatin, coated into a substance. In silver gelatin photography, the emulsion consists of silver halide crystals suspended in gelatin and the substance may be glass, plastic film, paper or fabric.
Related Readings: Police Photography
1. Police Photography Definition of Terms
2. Police Photography Review Notes