Solutions called toners are used to change the colour of a black and white photographic image. Various toners are available which add there own Cold or Warm tones to the print (Sepia is the most well known). (see Tone)
The natural process where a coin's surface oxidises over a number of years due to contact with the air. Blue, yellow, gold and red tonings can occur. If attractive, toning can add value to a coin.
The name given to what happens to the colour of a coin over time. Often silver coins will tone beautifully and show traces of blues and purples. Normally worn coins do not get a chance to tone.
An archival process in which photographic prints are chemically treated to extend their longevity. A color shift can be achieved by longer exposures to the toning agent when this is desirable. The most commonly used toning agents are sepia, selenium and gold toners. With most papers, sepia toner will cause a red-brown color shift, selenium will cause a violet to red-violet color shift, and gold toner will cause a green or blue color shift.
Using solutions called toners, it involves the intensifying or changing of the original tone of a photographic print after it has been processed. These toners are used to create various shades of colours on the print.
Process using solutions of iron, sulphur, selenium or other chemistry to change the colour of a black and white print and / or increase its archival permanence.
A means of changing the color of a photographic image, the toning process can enchance image stability and increase contrast. The range of tones is wide, including browns, purples, sepias, blues, olives, red-browns, and blue-blacks. (Baldwin, 81-82)
to soften or reduce in intensity, color, or appearance, to change the normal silver image to a much darker shade. A term used to identify the corrosion or breakdown of the metal used in Hot Wheels cars.
Shading of color on coins. Toning can be in many forms from dark or brown to various shade of other colors. It can cover the whole coin or more often part of the coin. Toning results when the surface of the coin comes in contact with the air and environment it is exposed to. Traces of material in the metals will also play a roll in toning. Some think toning makes a "protective" coating over the surface of a coin that helps the coin resist corrosion. Toning can be even be artifically done by exposing the coin to certain reactive substances. Some "naturally" occurring toned coins bring a premium in the collector market due to their unique beauty. Others may bring less than an un-toned coin when the toning is unattractive. Also see "corrosion".
Color acquired from chemical change on the surface
Toning images allows an artist to alter the colors of a photographic print (by replacing the silver in the silver salts with another metal) and to increase the archival properties of the image. There are four basic types of toners: replacement, mordant dye, color coupler, and straight dye toners.
the coloration changes of a coin caused by the reactive metal composition
Toning refers to the colors and hues of a photograph such as Black & White or Color.
The coloring which has formed on the surface of a coin as a result of the metal's interaction with outside elements. (Synonym: "Patina").
Intensifying or changing the tone of a photographic print after processing. Solutions called toners are used to produce various shades of colors.
Natural patination or discoloration of a coin's surface caused by the atmosphere over a long period of time. Toning is often very attractive, and many collectors prefer coins with this feature.
This term is generally used in connection with the chemical alteration of the hue of the emulsion in black-and-white photographs.
Restoring color and tone to the skin, as with a toning product.
The film or coloring on the surface of a coin caused by a chemical reaction between the coin's metal and some other substance such as the sulfur from older cardboard books, flips, or envelopes. Rainbow-colored, original toning is often a desirable characteristic for a coin.