Is a photographic emulsion sensitive to all the colours of the visible spectrum and to a certain amount of ultra-violet light. The sensitivity is not uniform throughout the spectrum.

A photography technique in which the camera follows a moving subject. Done correctly, the subject is sharp and clear, while the background is blurred, giving a sense of motion to the photo.

"Is a numerical terminological description of paper contrast: numbers 0-1 soft

The difference in point of view that occurs when the lens (or other device) through which the eye views a scene is separate from the lens that exposes the film.

Occurs when shooting very close up with a viewfinder camera. The photographer does not see an accurate indication of the subjects position relative to the lens, so parts of the subject that he or she thinks will be photographed are missing on the final photograph. Parallax error is overcome in more expensive compact and viewfinder cameras which adjust the viewfinder to compensate for the distance the subject is away from the camera.

When an array of processors or segments of the CPU work at the same time to speed processing or multi-task.

A path is an overlay that sits on top of your image, allowing you to work with it.

(Personal Computer Memory Card International Association) card. used in digital cameras to transfer photos to a notebook or PC.

(PortableDocumentFormat) is a file format that has captured all the elements of a printed document as an electronic image that you can view, navigate, print, or forward to someone else. PDF files are created using Adobe Acrobat (NOT the free reader), Acrobat Capture, or similar products. To view and use the files, you need the free Acrobat Reader, which you can easily download. Once you've downloaded the Reader, it will start automatically whenever you want to look at a PDF file.?PDF files are especially useful for documents such as magazine articles, product brochures, or flyers in which you want to preserve the original graphic appearance online. A PDF file contains one or more page images, each of which you can zoom in on or out from. You can page forward and backward.

A popular storage method for digital images. In the basic Kodak Photo CD configuration, five different levels of image quality are stored for each in an Image Pac.

The native Macintosh file format for images.

(Picture Element) The smallest point in a scanned image. Line art pixels are black or white, greyscale pixels can be from grey level O to 255, and colour pixels can be from O to 255 for each RGB channel.

"The stair-stepped appearance of a curved or angled line in digital imaging. The smaller the pixels, and the greater their number, the less apparent the "pixelization" of the image. Also known as the "jaggies"."

The ability to install equipment with little or no setup.

The plug-in architecture was first popularized by Adobe Photoshop and is now the de facto standard for all major imaging programs. Unlike TWAIN it allows more flexibility in design so acquire, export, and specific task can be performed within a software application. This is the preferred choice of operation in the Macintosh and 'Power User' computers. Plug-In ideology has spread to other applications like Netscape Navigator, Macromedia Director, and so on. Not all plug-ins work with all products, specific interfaces are required for different types of software. Plug-Ins are also software version dependent.

Software that runs from within another application.

Photo Multiplier Tube. The light sensing devices generally used in drum scanners.

"Developed as a patent-free alternative to GIF, the Portable Network Graphics (PNG) format is used for losslessly compressing and displaying images on the World Wide Web. Unlike GIF, PNG supports 24-bit images and produces background transparency without jagged edges

The opposite of a negative for example an image with the same tonal relationships as those in the original scan. Most prints and slides are positive.

Visible tonal banding in an image.

A photographic or digital graphic effect arising from reducing the number of continuous tones in an image. Can be a deliberate effect or a result of over-manipulation or compression in a digital image.

(pixels per inch) The unit of measure for a pixel based image, such as an image displayed on a monitor. Also used for scanner resolution.

The industry that prepares the film from which printing plates are made.

A quick, low resolution preview scan of an image to be scan.

To soak film briefly in water prior to immersing it in developer.

A low-resolution version of an image that appears in the SilverFast Ai Preview window to help you set the scan area and scanner controls.

"The set of colours that can be mixed to produce all the colours in a colour space

The amount of detail a printer or imagesetter will reproduce, measured in dots per inch (dpi).

Aperture and shutter speed priority modes are a shortcut to easy exposure adjustment. To set exposure manually, you would need to separately adjust aperture and shutter speed settings. With priority modes, when you adjust aperture, shutter speed is automatically reset appropriately or vice versa. It's a nice way to get more creative without having to worry about understanding all the details behind these kinds of adjustments.

An ICC description of a particular imaging input or output device that allows the Colour Management Software to apply the proper transformations to the image file to match the specific limitation of the device.

CCD specially designed for digital cameras, the shape of progressive CCD pixels being square thereby making them ideal for photography.

A non-interlaced refresh system for monitors that cuts down on CRT flicker.

A representation of what a final printed piece will look like so that it can be evaluated before the expense of printing.

A low resolution image used in any software programs to show the effects of changes without performing transformations on high resolution files.

The native file format of the Adobe Photoshop graphical editing application. Adobe Photoshop is a standard editing application in the print and internet media worlds.