Azo dyes
Pigmented Inks forming colours of immense strength and purity
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Coupled dyes
Techniques Glossary Coupled dyes
The visible colours that are created by colour development.
vat dyes
synthetic organic dyes in paste or powder form.
VDA 6.1
Verband de Automobilindustric, a quality system requirement for suppliers to German automakers.
-Azo dyes - compounds forming colors of great strength and purity. Used in camera filters and integral tripack dye-bleach materials.
[edit] Dyes
When hand-colouring with dyes, a weak solution of dyes was preferred, and colours were built up with repeated washes rather than being applied all at once. The approach was to stain or dye the print rather than to paint it.
Colour dyes in film.
Dyes are another area of concern when it comes to archiving photographs.
The filter dyes placed directly over each pixel on the chip surface (CCD, CMOS, CMD). The colour-filter array separates incident image into three colour bands; typically RGB or CMY.
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The filter dyes placed directly over each pixel on the chip surface (CCD, CMOS).
CompactFlash
(CF) The most common type of digital camera flash memory storage. There are two types: ...
COLOR REVERSAL FILM PROCESSING Color transparency film forms dyes according to a reversed silver positive; for example, a yellow dye image forms in the top emulsion that corresponds to an absence of blue in the original scene.
Dye Sub - Dye Sublimation is a printing process where the color dyes are thermally transferred to the printing media.
Humidity also causes inkjet prints, especially those printed with dyes on swellable papers, to lose sharpness and have changes in color balance and density due to dye migration.
After processing the image is made up of lots of clumps of silver from the developed crystals, dyes in the case of colour film, these are referred to as grain. A bit like a TV or monitor screen is made up of pixels so a photograph is made up of grain.
Panchromatic film - originally made by adding dyes to red-insensitive film, a result of work by Dr. Adolf Miethe, is capable of recording red subjects, as its sensitivity range reaches wavelengths of 660-730 nm (orange/red to red).
Dye sublimation printers form images by delivering dyes to the paper using heat. Images are close to photo quality but as yet consumer models can only produce small prints and they are unsuitable for normal correspondence as special paper is needed.
LIGHTFASTNESS - The rate at which dyes, pigments and paints change colour or get lighter as a result of being exposed to UV or daylight, heat, acids or alkalis.
It was also challenging for early pigment inks to produce the wide gamut of colors possible when using dyes. A lot of late night hours in Epson's and other printer manufacturer's research labs have improved matters considerably.
Observation with biological microscopes includes a variety of special techniques, such as Epi-Fluorescence to view specimens stained with fluorescent dyes, ...
In the case of inkjet printers, a number of dyes or pigment inks are used. These dyes or pigments have their own color characteristics.
Most of the Berg Color Tone dyes also give similar tones to both the first and second images. However, the Berg yellow dye gives the first image an olive- drab tone and the second image a yellow- brown tone.
When stored under optimum conditions, CDs using Phthalocyanine dyes and a gold metallization layer should have the longest life. Mitsui MAM-A Gold Archive 74 minute CD-Rs match these requirements.
A processing solution used in colour processing to make the dyes produced by development more stables. Alternative to fixer where permanence is not required.
Inkjet dyes are dissolved from a solid to liquid and then sprayed on to the output medium (paper, plastic, fabric, etc.). Dye inks are usually bright, have a wide dynamic color range, but have a limited life span.
-Chromogenic development - process in which the oxidation products of development combine with color couplers to form dyes during processing.
-Chromogenic materials - color photographic materials which form dyes during processing.
Each pixel on the surfaces of CCD and CMOS chips are covered with these filter dyes.
Color Depth
Each pixel's designated number of bits in a picture and how many colors those bits create. At 24 bits per pixel, True Color can deliver 16 million colors.
Retouching In film photography or printing, retouching refers to a process of altering a print or negative after development by use of dyes or pencils to alter tones of highlights, shadows, and other details, or to remove blemishes.
Altering a print or negative after development by use of dyes or pencils to alter tones of highlights, shadows, and other details, or to remove blemishes.
Retrofocus Design ...
In chromogenic films the final image is made of coloured dyes formed during processing rather than Silver Halide. A Black & White chromogenic film can be processed along side colour films in a C41 process.
(see C41 & Silver Halide) ...
The dyes are vaporized at high heat and diffused across a small gap to the paper or transparency. Semi-transparent dots of cyan, magenta and yellow of varying intensities (usually 256 intensities) are overprinted to create more than 16 million hues.
Airbrushing: Retouching of prints by dyes or pigments sprayed on with high-pressure air.
Anamorphic lens: A lens which is capable of producing images with wider angle of view in one dimension than the other.
You're correct about the dyes in colored film, and I've corrected that part of the article.
SPOTTING - Retouching of a photographic print using a brush with watercolors or dyes, or a pencil, to get rid of blemishes caused by dust or scratches on a negative.
Black paper album pages contain dyes that can harm photographs. Back in the day, photographers glued photos to black paper, not knowing any better.
Spotting
Retouching a processed print with a pencil or brush (with watercolors or dyes) to eliminate spots left by dust or scratches on the negative.
Retouching
Altering a image after development by use of dyes or pencils to alter tones of highlights, shadows, and other details, or to remove blemishes. Digitally it is often referred to as post processing.
Color proof: Image created using process color inks, pigments or dyes to predict the appearance of the final printed sheet.
The print will never look ex-actly as it does on the monitor because a printed image consists of inks or dyes on various papers, while monitor images consist of glowing phosphors or LCD pixels.
Epson's dye based inkjet photo printers are reputed to have the same problem with their cyan dyes. This early fading and color shift may not show up in your own home environment but if you send your prints around the country, beware! ...
On the Pro 70 Canon have used an alternative to the usual RGBG colour filter this time they've used CYGM. The coloured filter which is painted onto the surface of the CCD (dyes) is coloured as shown in the diagram, cyan, yellow, green and magenta.
Thermal dye prints-A process for generating computer (digital) images on paper using a printer. The process uses thermal dyes to create the color image.
-A monitor's colors are made up of glowing red, green and blue pixels, while a print's colors are created by light that must reflect through cyan, magenta, yellow and black dyes or pigments and white paper.
Transmissive light filters (e.g. colored patches of glass or plastic) stop some of the wavelengths from the incident light, only letting trough a limited range of colors. Reflective light filters such as paints, dyes and pigments absorb the unwanted ...
You are now thinking "Gee, I wish I could make prints larger than 8 1/2 x 11 inches." Or perhaps you've heard that the ink in your inkjet, being made from dyes, is not as stable as pigments.
 See also: Image, Camera, Print, Color, Photograph
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