|
Home
About
Papers/Canvas
Special Projects
Order
Prints Contact
Education Pricing
Specials
Terminology
8 Bit Color - 8 bits of
color per channel each 8 bits represent 256 levels of color so in an RGB
image there is 3 x 8 bits (3 x 256 = 16,777,216 possible colors)
16 Bit Color
Chine-collé is a special
technique in printmaking in which the image is transferred to a surface that
is bonded to a heavier support in the printing process. We use this process
in digital combination prints where we can print in full color on rice paper
which is then bonded to a heavier paper with an etching.
CMYK - Cyan
Magenta Yellow and BlacK
Conversion profile
Digital File
A digital file is a file that a computer can recognize and is made up of
tiny dots of color. Each dot is mathematically expressed as one of three
(RGB) or four (CMYK) colors. For
example a pure red dot in RGB would be described as 255, 0, 0 and pure
yellow would be 255, 255, 0. If all three numbers are the same the color
is grey. (see scanners)
DMAX
DPI
Dots per inch. Often used to describe the size of a digital
file for printing
Giclée - see
IRIS print and Giclee page
ICC Profile - See
profiles
InDesign
This is a page
composition program from Adobe which directly competes with
QuarkXPress.
If you are using this program to prepare your files it is recommended
that you export each page as an EPS.
IRIS Print
IRIS was a manufacturer of dye based CMYK printers, invented in the late
1980's in the 90's they became the pre-eminent digital Fine Art Printer
for almost two decades. The word Giclee was specifically introduced for
IRIS printers. Sadly IRIS printers are no longer made and have been
mostly replaced by Epson printers in the fine art market place. Because
IRIS used dyes rather than pigments the prints
are more susceptible to moisture damage. Early IRIS prints were not
archival but archival inks were introduced in 1993/4. (See also
Giclee)
Pigment Print
Modern Epson printers use pigments rather than dyes which are much more
durable and water resistant. To get the best results with pigment based
inks the paper has to be coated with a microscopic receptor. We often
call our digital prints "Pigment Prints" to define the process.
Profiles -
Printer Profiles - ICC Profiles
Printer profiles are used to attempt to make the printer match a
color calibrated monitor as closely as possible. Most printer and paper
manufacturers provide profiles to use with their printers/papers. In some
cases we use these but most of the time we use our own custom profiles. We
make these by printing a color swatch on the printer and measuring the
colors with a speoctrophotometer. We then mathematically compare the colors
actually printed with a constant and adjust it. We may do this many times to
fine tune the profile. The final ICC profile is used with the specific
printer and paper combination.
QuarkXpress This is
a page composition program which directly competes with Adobe InDesign. If
you are using this program to prepare your files it is recommended that
you save each page as an EPS file.
RGB -
Red Green Blue
PPI -
Pixels Per Inch see DPI
Scan /
Scanner
A scanner All scanners are not equal, sadly and there is a reason we
spent over $17,000 on our film scanner. We can scan negatives,
transparencies and photographs from 35mm and up. We have other scanner
to scan flat artwork from 4" x 5" to 4 feet x 6 feet. When we scan an
image the scanner recognizes the image scanned in dots per inch. Our
scanners can scan anywhere from 300 to 4200 dots per inch which means
that every 10 to 100 microns a new part of your image is measured
(that's every 0.003" - 0.00025") - yeah, that's a detailed scan! The
resultant files can have up to a billion bytes of information. The
better the scan the better the print!
Useless facts: a human hair is between 40 and 120 microns, a red blood
cell is 6 - 8 microns
Watercolor Paper
|