Control unit for color processes using an external timer.
Necessary if you want to make color prints using LED light from Heiland.
With this control unit, you can use the Heiland LED cold light source to digitize negatives and slides or to expose RA4 colour papers.
Filtering is either additive (red, green and blue) or subtractive (yellow, magenta, cyan).
The light color is set reproducibly using rotary knobs with detents.
The color intensity is displayed in filter values from 0...400 with a yellow LCD.
White light for focusing is activated at the touch of a button.
The intensity of the exposure can be varied in the range of 2 f-stops.
A elaborately stabilized power supply prevents fluctuations in the intensity of the LEDs when the mains voltage changes.
Control of the exposure time is handled by your timer or colour analyser.
