Glossary
- Active D-Lighting
A camera setting that preserves highlight and shadow details in high-contrast scenes with a wide dynamic range.
- AE (Auto-Exposure)
A general-purpose shooting mode where the camera selects the aperture and/or shutter speed according to the cameras built-in light meter. See also Shutter Priority and Aperture Priority.
- AE/AF (Auto-Exposure/Autofocus) lock
A camera control that lets you lock the current metered exposure and/or autofocus setting prior to taking a photo. This allows you to meter an off-center subject, and then recompose the shot while retaining the proper exposure for the subject. The function of this button can be altered in the Custom Settings menu (CSM f7).
- AF-assist illuminator
An LED light that is emitted in low-light or low-contrast situations. The AF-assist illuminator provides enough light for the camera's AF to work in low light.
- ambient lighting
Lighting that naturally exists in a scene.
- angle of view
The area of a scene that a lens can capture, determined by the focal length of the lens. Lenses with a shorter focal length have a wider angle of view than lenses with a longer focal length.
- aperture
The designation for each step in the aperture is called the f-stop. The smaller the f-stop (or f/number), the larger the actual opening of the aperture; and the higher numbered f-stops designate smaller apertures, letting in less light. The f/number is the ratio of the focal length to the aperture diameter.
- Aperture Priority
A camera setting where you choose ...
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