A color head is an option for an
enlarger in the
darkroom.
With a color head the light in the enlarger can be adjusted for color neutral results.
Therefore there are three adjustable
dichroic filter
A dichroic filter, thin-film filter, or interference filter is a color filter used to selectively pass light of a small range of colors while reflecting other colors. By comparison, dichroic mirrors and dichroic reflectors tend to be characteri ...
s - yellow, cyan and magenta inside who allow to change the color of the light source.
References
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Photography equipment