New+Vocabulary

=New Vocabulary =


 * Autofocus:** A feature of some cameras that allows them to obtain correct focus on a subject, automatically, instead of requiring the operator to adjust focus manually.


 * Aperture:** A hole in which controls how much light is emitted. In photography, the larger the aperture, the less light it will let in. Aperture is controlled and labeled as f/stops. Smaller f/stops allows objects at a wide range of distances to all be in focus at the same time.


 * Exposure:** The total amount of light allowed to fall on the image sensor during the process of taking a photograph. Exposure is measured in lux seconds and can be computed from exposure value(EV) and scene luminance over a specified area. Using the EV button can help override the optimum exposure setting.


 * Focus:** The adjustment, placing the sharpest focus where it is desired on the subject.


 * ISO:** ISO measures the sensitivity of the image sensor- the lower the number, the less sensitive your camera is to light and the finer the grain (clearer the image). Higher ISO settings are mostly used in darker situations to achieve faster shutter speeds however the cost is noisier shots.


 * LCD:** A screen that displays the image as a viewfinder or just to review the images.


 * Megapixel:** How many millions of pixels a camera can produce. For example, an 8-megapixel camera can make 8 million pixels and the image will come out with the 3,264 x 2,448 resolution.


 * Metering:** Metering is a process which involves the camera taking a light level reading from the scene and selecting the required exposure value. Various modes like spot, evaluative, and center weight, are offered to allow the user to select the most suitable one for the specific lighting conditions


 * Shutter Speed:** How fast the lens's shutter closes (measured in seconds). For example: 15 - 1/1500 sec.


 * White Balance:** A measurement of how white something truly is. Modes include sunny, cloudy, snow, beach, fluorescent, tungsten, overcast, and obviously AUTO.


 * Zoom:** A method of decreasing the angle of view, or getting "closer" to a subject.