Re: [Avid-L2] Phillips Hue lights for a monitor backlight?

On Thu, Dec 26, 2019 at 03:33 PM, Gowanus Canal wrote:

I’m not familiar with Philips Hue. What is the CRI rating? I would not use any LEDs in a grading room lower than 90 CRI. 

DQS

From the Phillips website:

What is the color rendering index?

 

The effect of a light source on color appearance is measured in the color rendering index (CRI), on a scale of 0-100. Natural outdoor light has a CRI of 100 and is used as the standard of comparison for any other light source.

 

The CRI of Philips LED lighting products is always higher than 80, close to the sun’s value. Colors are reflected truly and naturally. The illustrations to the left show how CRI can affect the appearance of color. When shopping for bulbs, look for a high CRI to get the best color.

What is the color rendering index?

 

The effect of a light source on color appearance is measured in the color rendering index (CRI), on a scale of 0-100. Natural outdoor light has a CRI of 100 and is used as the standard of comparison for any other light source.

 

The CRI of Philips LED lighting products is always higher than 80, close to the sun’s value. Colors are reflected truly and naturally. The illustrations to the left show how CRI can affect the appearance of color. When shopping for bulbs, look for a high CRI to get the best color.

 

On Dec 26, 2019, at 6:07 PM, John Moore <bigfish@pacbell.net> wrote:

In my recent DolbyVision mastering class it was mentioned that the Phillips Hue Bulbs can be adjusted to proper color temperature for a monitor back light.  It says in the various info I've obtained that the White Ambience Bulb is controlled by blue tooth and it can have a color temp of 27002K to 6500K.  I picked up a couple lights and got them working.  The interface on my new iPhone, yes I finally retired the BlackBerry Torch, and I can swing the color temp but the interface is not set up with a degree Kelvin parameter.  It's either choose a preset or move the icon in a circle with the bottom going more blue white.  I'm assuming the bottom of the circle would be approx 6500K.

 

Anybody played with these bulbs using a real color temp meter or know if there is a way to get a preset that is designed to set the bulbs to 6500K white.

 

They also have dimming and I'm wondering it the dimming would effect color temp.  I know it did on tungsten lamps on the stage.

 

 

John Moore Barking Trout Productions Studio City, CA bigfish@pacbell.net

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