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A light-tight box that contains a light-sensitive material or device and a way to let in a desired amount of light at particular times to create an image on the light-sensitive material.
What is a camera?
Crops the image and enlarges the cropped image to fill the frame of the camera.
What is a digital zoom?
Works lik a telephoto lens; the image quality remains the same as the image is magnified.
What is an optical zoom?
A file format that is offered on some digital cameras. This file saves the actual data, which are not processed by the camera.
What is RAW or NEF?
Tells the size of the grain in film.
What is speed?
Bends the light toward the center of the lens, since one or both sides of the glass curve out.
What is a converging or convex lens?
The distance between the lens and the film, whch the lens is focused at an infinite distance.
What is focal length?
Five-sided mirror whose job it is to flip the light from the image so that the image appears right side up rather than shows the inverted image that first occurs.
What is pentaprism?
The equivalent of film speed on a digital camera.
What is sensitivity?
Those that magnify an image or make an object seem closer than it really is.
What is telophoto lenses?
Uses an electronic image sensor to digitally record an image.
What is a digital camera?
Stands for "Joint Phot Experts Group"; the default file format in many digital cameras on the market today.
What is JPEG?
Does not us a lens and has a very small aperture.
What is a pinhole camera?
Opens and closes between the film and the lens, letting light in only when you have told the camera to do so.
What is a shutter?
Tagged Image File Format; a lossless file format.
What is TIFF?
A digital version of the traditional SLR camera.
What is dSLR?
Use a negative film size that is greater than the usual 35mm.
What are large and medium format cameras?
The smallest unit of the picture that can be controlled.
What is a pixel?
The length of time that light is let into the camera to expose the film.
What is shutter speed?
An adjustment that can be made to the color so that whites will appear white and not yellow or blue in the photograph.
What is white balance?
Controls the aperature; a set of overlapping metal plates that expand out to allow more light or fold in on each other to reduce the amount of light.
What is iris diaphragm?
"A group or molded piece of glass, plastic, or other transparent material with opposite surfaces either or both of which are cuved, by means of which light rays are refracted so that they converge or diverge to form an image."
What is a lens?
Uses an optical viewfinder, rather than having the semiautomatic mirror.
What is a point and shoot camera?
Semiautomatic movement of the mirror, which produces an exact image in the viewfinder.
What is SLR or single lens reflux camera?
Shrinks the object in front of it, by way of a shorter focal length.
What is wide-angle lens?