Color (Temperature) Conversion Filter
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-Color conversion filter - see CC filters.
-Color developer - developer designed to reduce exposed silver halides of black silver and at the same time create oxidation byproducts that will react with color couplers to form specific dyes.
Color conversion filters such as the 81 warming series and 82 cooling series are one type of filter you do no longer need. Their effect can be duplicated in-camera by simply adjusting the white balance.
Color Conversion Filter A filter that alters the color temperature of light to make it suitable for the film in use. It enables you to use daylight-type film indoors or tungsten-type film outdoors.
CONVERSION FILTERS Conversion filters are used in color photography when a significant adjustment of an exposing light is required to convert the color quality of the exposing light to the color temperature for which a film is balanced.
0 includes three black-and-white conversion filters, each with its own characteristics. Controls differ from filter to filter, but all allow you to adjust the outcome with incredible precision and choose between Basic or Advanced manipulation.
The effect of Color Temperature conversion filters on color temperature is measured in units called "reciprocal megakelvins" (MK-1). Given the filter's shift value in MK-1, you can figure out how the filter will change a given temperature of light.
Color conversion filters like the warming 81A and 81B are indeed relatively easy to simulate, but to equate the effect of a ND grad may require more than wizardry, although I've seen it done fast and most effectively by Dave Black, ...
Mireds are commonly used for converting light from one colour temperature to another using a colour conversion filter. For example, let's say we want to take a photo using electronic flash but we have tungsten film in our camera.
So the first type of filter you really don't need for digital is a color modification filter. These would be warming filters like the Hoya 81 series or the Tiffen 812, cooling filters like the 82 series and fluorescent-daylight conversion filters.
Color conversion filters: Color filters used to correct the color temperature of a light source to suit the color balance of films.
Color temperature: Scale measured in Kelvin that is used to express the color quality of a light source.
Soft focus filters soften the focus to make portraits more flattering and to make hazy, romantic landscapes.
Close-up lenses magnify the subject without affecting aperture settings.
Color conversion filters let you fine-tune the way you capture ...
 See also: Filter, Light, Filters, Color, Film
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