What CRI is firelight?

[Cereal_killer]

its not some new torch or anything awesome... Simply wondering the color rendering of the light from fire.

Yes I could google it but I'd rather read threw a thread of answers from a site I know the people on than random answers off google answers or where ever else.

[totilde]

it depends on the temperature!
sorry, mistake, don’t know what was i thinking

[Cereal_killer]

Ok what really got me wondering was watching someone using a bic lighter for light so say typical orange lighter flame.

[Ouchyfoot]

I’m not positive, but I think it may be 100, like the sun, that big ball of fire.

[rojos]

@Ouchyfoot

I’m not positive, but I think it may be 100, like the sun, that big ball of fire.

I think natural fire light is always 100.

[Gj1 (Gj)]

Can't be, there are all sorts of colored flames. How could the nearly invisible blue flame from an alcohol lamp have the same CRI as a bright yellow flame from burning wood or the brilliant white of burning magnesium?

[likevvii]

candle flame is 100 cri

[leaftye]

This says it's 100.

http://www.firefarm.com/cri-color-temperature

Because it's less than 5000 K, it's evaluated as a black body radiator.

http://www.lrc.rpi.edu/programs/nlpip/lightinganswers/lightsources/whatisColorRenderingIndex.asp

[rojos]

@Gj

Can't be, there are all sorts of colored flames. How could the nearly invisible blue flame from an alcohol lamp have the same CRI as a bright yellow flame from burning wood or the brilliant white of burning magnesium?

What you're talking about is color temperature. Color temp and CRI are two completely different things.

[WarHawk-AVG]

hmmm

The color rendering index (CRI), sometimes called color rendition index, is a quantitative measure of the ability of a light source to reveal the colors of various objects faithfully in comparison with an ideal or natural light source. Light sources with a high CRI are desirable in color-critical applications such as photography and cinematography.[1] It is defined by the International Commission on Illumination (CIE, in French) as follows:[2]

Color rendering: Effect of an illuminant on the color appearance of objects by conscious or subconscious comparison with their color appearance under a reference illuminant

So a CRI of 100 would be PERFECT color rendition

It seems those guys that do the wide spectrum multi-emitters are getting closer to a more perfect CRI of 100 because it covers a wider spectrum of light rendition, your eye “sees” more color tints

[aoeu]

I just read this CRI Explained – Full Spectrum Solutions, Inc.

It reads even if the CRI is 100, doesn’t necessarily mean that colours will look accurate to the eye.

” Incandescent bulbs have a CRI rating of 100, yet are far from ideal for color rendering and matching. Why? With a color temperature of only 2700k they are far too weak at the blue end of the spectrum making it next to impossible to distiguish between various shades of blue. The CRI rating of 100 simply means that the 8 samples look exactly the same as they would under a black body radiator at 2700k”