AR 218 Photography I
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33 Terms
Photography
Recording images using a light sensitive medium
photos and graphe
What are the 2 Greek words that Photography comes from?
Human eye
What do cameras mimic?
On how light is hitting them and how light is being reflected.
Everything we see is based on what?
Pupil
What part of the human eye controls the amount of light entering the eye?
Iris
What part of the human eye is the muscle that will change and make the pupil smaller or larger?
Retina
What part of the human eye contains the light sensitive cells?
Lens
What part of the human eye focuses light on the imaging surface?
Cones
Type of cell in the Retina that collects the color information; small area of the Retina is covered by these types of cells
Rods
Type of cells in the Retina that correspond to the properties of light.
Red, Green, and Blue
What are the 3 types of Cones?
Luminance
The amount or intensity of light (what rods are detecting).
Dynamic Range
Measures the difference between the darkest area and the brightest area.
30 Stops
What is the total Dynamic Range of the human eye?
10-12 Stops
What is the total Dynamic Range of a digital camera?
Stop
a doubling or a halving of the amount of light; measures Dynamic Range
Chrominance
The amount of intensity of color
Lens
What part of the camera focuses the light on the focal plane?
Focal Plane
The surface of the image sensor in a camera.
Focal Length
The distance from the optical center of the lens to the Focal Plane.
Prime Lens
Which lens has a fixed focal length(never changes)?
Zoom lens
Which lens has an adjustable focal length?A
Aperture
What part of the camera determines the amount of light that goes through the lens?
Pupil
Which part of the human eye does the Aperture correspond with?
Shutter
What part of the camera is the mechanism that lets light into the camera?
Eyelid
Which part of the human eye does the Shutter correspond with?
Image Sensor
A light sensitive computer chip covered with photosites
Retna
Which part of the human eye does the Image Sensor correspond with?
Point and shoot, SLR, and Mirrorless
What are the 3 Camera categories?
Point and shoot camera
Camera that automatically makes most or all decisions; most common camera.
LCD Screen
What is the main viewfinder of a point and shoot camera?
Second lens
What is the optical viewfinder of a point shoot camera?