Reducer

Reducer
A chemical thats used to reduce the density of a processed negative, often referred to as Farmers Reducer.
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Reducer
Techniques Glossary Reducer
A chemical thats used to reduce the density of a processed negative, often referred to as Farmers Reducer.

reducer
a solvent or other additive used for lowering the viscosity and tack of an ink formulation.
reducing atmosphere
a furnance environment that tends to remove oxygen from a substance or material placed in a lehr or kiln.

Reducers
Are solution which removes silver from negatives and prints. They are used to diminish density and alter contrast on a photographic emulsion.

-Chemical reducer - see Reducers.
-Chemical vapor - method of exposing negatives in a closed container to a small amount of mercury of sulfur dioxide. After approximately 24 hours the film is developed normally.

Kodak Farmers Reducer mixed according to manufacturers' suggestions is not an effective reducer for T-MAX emulsions. If you need to reduce T-MAX films try Kodak Farmer's Reducer R-4a which is included in most formularies.
CONSISTENCY IS IMPORTANT ...

Focal Reducer An optical component or system for changing the image scale of a telescope to achieve a better match between the seeing disk and the pixel size.

Common reducers are hydroquinone, metol, and phenidone. AcceleratorThe accelerator is added to the reducing agent to speed development. It also increases contrast.

A poor solarization can sometimes be remedied by judicious bleaching with a combination of ferricyanide and thiosulfate (Farmer's reducer) to lighten the minimum density regions.

One of the shortest is the Meade LXD-75 at f/4, most are even slower at f/11 or more and require focal reducers for reasonable exposure times.

Photoshop CS2 adds a noise reducer that may obsolete this.
Nik Color Efex Pro 2.0 ...

The StarLite® is compatible with the StarLite® halogen lamps, the new CoolStar® 150watt CFL lamps, BiPin (G9.5) lamps, as well as traditional Edison based halogen (when coupled with our socket reducer).

If you don't have an adjustable flash to point at the ceiling, be sure to use the built-in red-eye feature on your camera. If your camera doesn't have the red-eye reducer (or to add even more red-eye protections), follow these steps: ...

In a portrait retouching could be used to improve a sitter's appearance, for instance, by removing facial blemishes, and in a landscape with an overexposed sky, clouds could be painted into the image. Water-colours, inks, dyes and chemical reducers ...

See also: Image, Light, Photograph, Camera, Subject