Olympus C-2040 Zoom C-2040 Zoom Reference Manual - Page 216

Glossary of terms Miscellaneous 10 A (Aperture Priority) Mode In this mode, you set the aperture yourself and the camera automatically varies the shutter speed according to the aperture setting so that the picture is taken with the optimum exposure. AE (Automatic Exposure This is a system whereby the camera uses a built-in exposure meter to automatically set the exposure. The 3 AE modes available on this camera are P mode, in which the camera selects both the aperture and shutter speed, A mode, in which the user selects the aperture and the camera sets the shutter speed, and S mode, in which the user selects the shutter speed and the camera sets the aperture. In M mode, the user must select both the aperture and the shutter speed. Aperture This is a mechanism for adjusting the amount of light that passes through the lens. Lower values allow more light to pass, while higher values lessen the amount of light. When you set the lowest aperture value for a lens, the aperture is at its widest. Conversely, the highest aperture value gives the narrowest aperture. Backlight A light source provided for the Monitor so that it can be seen more easily. CCD (Charge-coupled Device A pickup element that converts light passing through the lens into electrical signals. On this camera, light is picked up at 2.11 million points and converted to RGB signals to build a single image. Contrast Detection Method This is a method used to measure the distance to the subject. The camera determines whether the image is focused by detecting the level of contrast in the subject. Conventional Photograph This refers to the system of recording images using silver halide. (This is the method for recording images on film in conventional, non-digital photography.) This system is in contrast to still video and digital photography. DCF Design rule for Camera File system) A standard formulated for image files by the Japanese Electronic Industry Development Association (JEIDA). Digital ESP (Electro-Selective Pattern) light metering A light metering method that determines the exposure by metering and calculating the light levels in the center and around the periphery of the image separately. DPOF Digital Print Order Format) A format used for recording automatic print settings for digital cameras. By recording which images are to be printed and the number of copies of each image on the card on which the images are saved, the user can automatically have the desired images printed by a printer or print lab that supports the DPOF format. Eclipsing (Vignetting This refers to the situation where there is an object that obscures part of the field of view so that part of the subject is not photographed. Vignetting also refers to the situation where the image seen through the viewfinder does not exactly match the image shot through the objective lens so that the photographed image includes objects not seen through the viewfinder. Vignetting can also occur when the incorrect lens hood is used and shadowing appears in the corners of the image. 216