PAR RGB white color correction
Posted: 26 Jan 2020, 22:02
I am a new user of the program "titan go" and I wonder if there is white
color calibration in the PAR RGB reflectors.
It is known from physics that the white components of RGB include the
following proportions: 0.3R + 0.59G + 0.11B
(https://www.scantips.com/lumin.html).
If the reflector manufacturer has set the RGB proportions well in the
equipment, then giving RGB=255,255,255 we will get white, and each
other combination values will give the same color on the spotlight as the one selected
in the program.
However, spotlights usually have 0.33R + 0.33G + 0.33B equal
proportions, because identical LEDs are mounted for individual colors.
After converting the correct proportions into DMX values for white, we
get: RGB=130,255,48 instead of 255,255,255.
Can we calibrate ranges for RGB components in the program?
For testing, I modified the R and B ranges in the .d4 file and obtained
a good color reproduction according to the settings in the program, but
in the 'visualizer' window
the colors are badly mated, because 'visualizer' operates on absolute DMX values
and assumes a good calibration of the device manufacturer.
To sum up, I have good colors in 'visualizer' and bad on devices or good
on physical devices (after changing the .d4 file) and bad in 'visualizer'.
Has anyone had a smillar problem?
color calibration in the PAR RGB reflectors.
It is known from physics that the white components of RGB include the
following proportions: 0.3R + 0.59G + 0.11B
(https://www.scantips.com/lumin.html).
If the reflector manufacturer has set the RGB proportions well in the
equipment, then giving RGB=255,255,255 we will get white, and each
other combination values will give the same color on the spotlight as the one selected
in the program.
However, spotlights usually have 0.33R + 0.33G + 0.33B equal
proportions, because identical LEDs are mounted for individual colors.
After converting the correct proportions into DMX values for white, we
get: RGB=130,255,48 instead of 255,255,255.
Can we calibrate ranges for RGB components in the program?
For testing, I modified the R and B ranges in the .d4 file and obtained
a good color reproduction according to the settings in the program, but
in the 'visualizer' window
the colors are badly mated, because 'visualizer' operates on absolute DMX values
and assumes a good calibration of the device manufacturer.
To sum up, I have good colors in 'visualizer' and bad on devices or good
on physical devices (after changing the .d4 file) and bad in 'visualizer'.
Has anyone had a smillar problem?