optical viewfinder
On a digital camera optical viewfinder is the eyepiece that you look through to frame and focus your subject before taking the picture. Because the optical viewfinder and your camera lens are not positioned the same way (e.g. the viewfinder is located above the camera lens), you may notice your final image is not an exact duplicate of what you saw through the optical viewfinder. If the digital camera has an LCD you can also use this to focus and frame the subject.
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- optical zoom
On a digital camera, optical zoom is a true zoom feature. It allows you to zoom in (or out) on the subject in the LCD or viewfinder. This will enable you to get a closer view of the subject before taking your picture. Optical zoom changes the magnification of images with the actual optical glass […]
- optimize
(1) In programming, to fine-tune a program so that it runs more quickly or takes up less space. (2) When applied to disks, the term means the same as defragment. See under fragmentation. (3) To configure a device or application so that it performs better.
- option
(1) In command-driven interfaces, an option is an addition to a command that changes or refines the command in a specified manner. As the term implies, options are just that — they are not required. In the DOS operating system, options are preceded by a slash (/). For example the DIR command supports the /P […]
- optoelectronics
A field of technology that combines the physics of light with electricity. Optoelectronics encompasses the study, design and manufacture of hardware devices that convert electrical signals into photon signals and vice versa. Any device that operates as an electrical-to-optical or optical-to-electrical transducer is considered an optoelectronic device. Optoelectronic technologies include fiber optic communications, laser systems, […]
- orientation
)See under landscape and portrait.