Some test with RGB LED Array 50W great color rendition.

[wangtrirat]

I've order this module come along way from China (Aliexpress). This thing is super cool.

Reasons I chose RGB LED.

- Camera sensor also RGB Filtered (RGGB) use primary color.
- Proved technology.
- I can control intensities of each color to make CCT. And +- green even cool color effect.

all idea came from Arri L7-C which I think it used what's call Light Engine (RGB LED)

https://www.youtube.com/watch?v=ZcVfvd0FpBw


Here is some test with various WB.

3200K Preset with 3200K WB on 6D

5600K Preset with 5600K WB

Also skintone test with daylight at 7.00am (Left natural light / Right RGB LED) 5600K WB

Further development will be use some type of circuit to control each channel intensity. This is only powered with 1/10 of it's all power.

Thank you.

 

[bclighting]

The problem with that is in your shadows. The multicolor shadow kills that for anything but bar band use.

 

[Postmaster]

No rolling noise problems with pulsed modulation?

 

[wangtrirat]

The problem with that is in your shadows. The multicolor shadow kills that for anything but bar band use.

in real use fixture will have some diffusion lens and front Fresnel lens to achieve clean beam.

No rolling noise problems with pulsed modulation?

I don't use circuit that most of it provided to use with. Likely to use with 3 switching PSU for each color, cheap Chinese one that I found in Thailand has VR to control voltage output. So I can have presets of resistors to control Color Temp. 5600K,3200K

So I think I'll put it to good use. Further more look forward for High-Freq PWM circuit and control with Arduino will be very complicated but it'll very easy to control on real use.