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words, output is very slightly lower than absolute maximum output to allow a margin for adjustment, and
LED modules are individually calibrated at the factory to ensure that color and white output is the same in
different LED modules at the same DMX values.
Calibrated HSV color mixing
As an alternative to RGB control, hue, saturation and value color control, with one DMX channel for each of
these parameters, is available. HSV control is calibrated at the factory.
CTC
From fixture software v. 1.2.0, the MAC 401 Dual's RGB Zoom LED module can vary the color temperature
of any color being displayed. White light color temperature is variable from a very cool blue sky (10 000 K) to
a warm sunrise (2000 K). The PERS menu contains two settings for the way CTC works:
• If PERS - CTC - WITH (the default setting) is selected, sending a DMX value on the CTC channel will
adjust the temperature of whatever color the fixture or segment is currently displaying. The more
saturated the color, the less CTC will be noticeable.
• If PERS - CTC - INDP is selected, sending a DMX value on the CTC channel will act independently
from color controls, override any currently selected color and the fixture or segment will switch over to
white light with variable color temperature.
CTC control is calibrated at the factory. It works in RGB, HSV and RAW modes, but in RAW mode it is
uncalibrated.
Color wheel effect
The electronic 'color wheel' effect gives the convenience and feel of a mechanical color wheel. The color
wheel effect in the RGB LED module lets you fade or snap between 33 different full LEE-referenced colors.
You can also scroll continuously forwards or backwards through the colors or display random colors at
variable speed.
The approximate RGB equivalents of the 'color wheel' colors are given in "LEE colors and RGB equivalents"
on page 35.
MAC 401 CT Zoom / CT Zoom LED module
This section describes the lighting effects available in the CT Zoom LED module that is fitted as standard to
the MAC 401 CT Zoom and available as an accessory for the MAC 401 Dual.
Raw warm white and cold white
The CT Zoom LED module gives separate control of warm white and cold white using two DMX channels.
This control mode is raw, so it gives absolute maximum output.
Calibrated color temperature control
CTC can be varied continuously from 7000 K to 3000 K using one DMX channel which mixes cold and warm
white LEDs. This control mode is calibrated at the factory, so color temperature will be the same in different
modules, but intensity is very slightly reduced compared to raw warm white and cold white mode to allow a
margin for adjustment.
Effects
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