Olympus C 4000 C-4000 Zoom Reference Manual (8.2 MB) - Page 208

Chapter 11 Glossary of terms (Cont.) DPOF (Digital Print Order Format) This is for saving desired print settings on digital cameras. By entering which images to print and the number of copies of each, 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 when an object obscures part of the field of view so that the whole subject is not photographed. Vignetting also refers to when the image seen through the viewfinder does not exactly match the image shot through the objective lens, so the photographed image includes objects not seen through the viewfinder. In addition, vignetting can occur when an incorrect lens hood is used, causing shadowing to appear in the corners of the image. Effective Pixel Resolution The number of pixels used in the CCD to create the image. EV (Exposure Value) A system for measuring exposure. EV0 is when the aperture is at F1 and the shutter speed is 1 second. The EV then increases by 1 each time the aperture increases by one F stop or the shutter speed increases by one increment. EV can also be used to indicate brightness and ISO settings. Exposure The amount of light used to capture an image. The exposure is determined by the time the shutter is open (shutter speed) and the amount of light that passes through the lens (aperture). Gross Pixel Resolution The total number of pixels in a CCD. Not all pixels are used to create the image. Flash Bracket A mount used to attach an external flash to the camera. ISO A method for indicating film speed by the International Organization for Standardization (ISO) (e.g. "ISO100"). Higher ISO values indicate greater sensitivity to light, so images can be exposed even in low-light conditions. 207