FujiFilm FinePix S3Pro, Руководство по обслуживанию

Страница: 7 / 102

7
1. General
FinePix S3Pro Service Manual
1-2. Explanation of Terms
Adobe RGB (1998) A color space introduced as the working color space for Adobe Photoshop 5.0.
AdobeRGB encompasses almost all the colors reproduced by CMYK printers and is
intended primarily for printing applications. It was introduced as “SMPTE-240E” in the
RGB settings in Adobe Photoshop 5.0 and as “Adobe RGB (1998)” in the profile settings
from version 6.0 onwards.
CCD-RAW This is the image data prior to signal processing (the reconstruction of the data read in
from the CCD as an image). Because the signal processing is performed on the com-
puter, high levels of control are possible.
• To reconstruct images, FinePixViewer (on the enclosed CD-ROM) or the Hyper Utility
(optional) must be installed on your computer.
Color space Refers to the range of colors, expressed as two-dimensional or three-dimensional
numerical values, that can be reproduced by devices such as cameras, monitors and
printers. The sRGB and AdobeRGB color spaces are each shown as an xy color chart (a
coordinate color space in which colors are represented in two dimensions with no
brightness value). The range of colors that can be expressed by a particular color space
is indicated by a triangle imposed on the xy color chart. Colors become brighter as they
approach the outer edge of the xy color chart. This color representation method is
capable of showing all the actual colors.
Color Temperature Low-temperature light sources, such as a candle flame, are strongly red, while high-
temperature light sources, such as a gas burner flame, are strongly blue. The color of
the light for these temperatures is expressed as a color temperature (K = Kelvin). The
light of the sun at midday in a completely clear sky is taken to be 5500K.
EV: A number that denotes Exposure Value. The EV is determined by the brightness of the
subject and sensitivity (speed) of the film or CCD. The number is larger for bright
subjects and smaller for dark subjects. As the brightness of the subject changes, a
digital camera maintains the amount of light hitting the CCD at a constant level by
adjusting the aperture and shutter speed.
When the amount of light striking the CCD doubles, the EV increases by 1. Likewise,
when the light is halved, the EV decreases by 1.
JPEG: Joint Photographic Experts Group
A file format used for compressing and saving color images. The higher the compression
rate, the greater the loss of quality in the decompressed (restored) image.
White Balance: Whatever the kind of the light, the human eye adapts to it so that a white object still
looks white. On the other hand, devices such as digital cameras see a white subject as
white by first adjusting the color balance to suit the color of the ambient light around the
subject. This adjustment is called matching the white balance.
Exif Print: Exif Print Format is a newly revised digital camera file format that contains a variety of
shooting information for optimal printing.