Photographers’ gobbledygook can be confusing! This photography dictionary will help you find the real significance behind that jargon.
ICC
Established in 1993 by eight industry vendors for the purpose of creating, promoting and encouraging the standardization and evolution of an open, vendor-neutral, cross-platform colour management system architecture and components. The outcome of this co-operation was the development of the ICC profile specification.
(see Colour Profile)
Image resolution
Digital photography: The number of pixels displayed per inch of printed length in an image, usually measured in dots per inch (dpi) or pixels per inch (ppi) The amount of detail in an image depends on its pixel dimensions, while the image resolution controls how much space the pixels are printed over. You can modify an image's resolution without changing the actual pixel data in the image all you change is the printed size of the image.
(see Pixel & File size)
Image Sensor
The Digital camera's image sensor is a device that converts an optical image into an electric signal. Either CCD or CMOS.
(see CCD & CMOS)
Image Size
The dimensions of a digital image, most clearly expressed in its pixel count, horizontally and vertically.
(see Pixel)
Incident light
Light falling on a surface (as opposed to reflected by it).
(see Meter)
Incident light reading
Measurement, of the amount of incident light falling upon a subject. The meter is placed close to the subject, pointing toward the light.
(see Meter)
Infinity
Focusing point at which the lens gives a sharp image of very distant objects, such as the far horizon.
The modern speed rating for photographic materials used instead of ASA or DIN*. The scale is identical to ASA (American Standards Association) where the rating is based on an arithmetical progression, using an average gradient system. Therefore ISO 200 film is twice as fast as ISO 100 film but only half as fast as ISO 400 film.
(see ASA & DIN)
Peter Ashby-Hayter, Bristol, U.K. Bristol Photographer
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