L A N G F O R D ' S S TA R T I N G P H O T O G R A P H Y Gamut The range of colors or hues that can be printed or displayed by particular devices. Gaussian Blur When applied to an image or a selection, this digital filter softens or blurs the image. GIF Graphic Interchange Format. This is an indexed color mode that contains a maximum of 256 colors that can be mapped to any palette of actual colors. It is extensively used for web graphics as buttons and logos, and small animated images. Glossy paper Photographic paper that can give prints with a shiny, glossy surface. Grade, of paper Classification of black and white photographic papers by the gradation they offer between black and white. Soft (Grade 1) paper gives a wider range of gray tones than Hard (Grade 3). See also Variable contrast paper. to act as a button on a web page. When the viewer clicks the hot-linked item, they are usually transported to another page or part of a website. HTML The Hyper Text Mark Up language is the code used to create web pages. The characteristics of pages are stored in this language and when a page file is downloaded to your computer the machine lays out and displays the text, image and graphics according to what is stated in the HTML file. Hue Refers to the color of the image and is separate from how light or dark it is. Hyperfocal distance The closest focus distance to the camera where, given a specific lens and f-stop, details at infinity are rendered sharp. When a lense is focused for the hyperfocal distance, depth of field extends from half this distance to infinity.