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Glossary
AE lock
A function to temporarily store the exposure setting determined by the camera in memory.
After measuring the light on a specific portion of the subject (face, etc.) or another
object, you can change the angle as desired, maintaining the exposure setting (AE
lock is activated with the AE button). When the subject is back lit, first direct the camera
to a dark area or fill the frame with the subject for AE lock, then return the camera to the
desired angle and framing to shoot.
Aperture-priority auto exposure
An automatic mechanism to obtain the proper exposure by automatically controlling
the shutter speed depending on the aperture specified by the operator. This mecha-
nism provides flexible photographing, such as focusing on the foreground subject and
having an out-of-focus background with a wide aperture opening, or to keep the overall
picture in clear focus with a small aperture opening.
Blank exposure
With a camera with manual film winding, initial film advancing is required by repeatedly
releasing the shutter and winding the film until the film counter indicates the first frame.
Cable release
A shutter release device designed to eliminate vibration caused by slight movement of
the camera from pressing the shutter button with the camera on a tripod.
Center-weighted metering
Light is measured with priority given to the center of the image, gradually decreasing
the metering level towards the edges.
Correct exposure
The exposure setting for the film that best reproduces the lighting condition of the
subject, from its highlights to shadowed portions. Or, the setting that can best provide
an image that matches the intention of the photographer. While the best combination of
shutter speed and aperture value for the sensitivity of film in use may normally provide
the correct exposure, this may not be true for the specific result you are looking for.
DX code
The bar code on a cartridge of 35mm film. The bar code contains information on the
type of film, sensitivity, and number of frames. A camera that can read DX code is
automatically adjusted by reading the information.
A
B
C
D
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