252GlossaryChapter 10: OthersGlossaryNumber of PixelsPixels are the smallest units which comprise a digital image. Images consisting of greaternumbers of pixels are more suitable for creating larger images.Resolution (Image size)This is the size of an image expressed by the number of points (pixels) comprising the image.For example, when the computer monitor setting is set to 640 × 480, an image shot at a size of640 × 480 will be displayed over the entire surface of the monitor. However, when the monitoris set to 1024 × 768, the image will only fill a portion of the monitor area.Digital ESP photometryThis is a method of photometry wherein CCD output is used to separately measure the light ofthe surrounding and center areas in order to calculate the exposure. You can use this functionon this camera by selecting Auto in Photometry.ExposureExposure refers to how the shutter opens to take in light, and the amount of light received bythe film or sensor so that a picture can be taken. The shutter speed adjusts how long the sensoris kept exposed to light, and the aperture adjusts how wide the lens diaphragm is opened todetermine the amount of light allowed through the lens.AE (Automatic Exposure)This is a method which utilizes a built-in exposure meter to automatically determine theexposure. Appropriate apertures and shutter speeds have been set for the 19 types of shootingmodes in this camera.CCD (Charge Coupled Device)This device employs a chip which with analog sensors to receive light entering through thelens, which is then converted into electrical (digital) signals. The image is created when lightreceived by the CCD is converted into RGB signals.
