Light Tenperatures: I have a very old cheat sheet card tucked into the bottom of the camera bag that lists lighting temperatures, in K 3000 incandescent 3700 incandescent 4000...

John_F Loc: Minneapolis, MN

I have a very old cheat sheet card tucked into the bottom of the camera bag that lists lighting temperatures, in K

3000 incandescent
3700 incandescent
4000 fluorescent
4500 white fluorescent
5500 clear sunlight
6500 cloudy
7500 clear northern sky

I have two lines to put in for LED lighting

Any know the good numbers.

PixelStan77 Loc: Vermont/Chicago

John_F wrote:

I have a very old cheat sheet card tucked into the bottom of the camera bag that lists lighting temperatures, in K

3000 incandescent
3700 incandescent
4000 fluorescent
4500 white fluorescent
5500 clear sunlight
6500 cloudy
7500 clear northern sky

I have two lines to put in for LED lighting

Any know the good numbers.

My understanding John is that they make LED's with different color temperatures.I saw a display at Home Depot that had the 4 available. . This is the color temps:

https://www.voltlighting.com/article-led-lighting-color-temperature/p/article-led-color-temp?gclid=CjwKCAiAlL_UBRBoEiwAXKgW59mjJz4p7Tjlu6Df4vcqRYWeE8LPyvo4B1jE3B_yDYO9uGNtn7EEBBoCILwQAvD_BwE

chaman

LED Colour Temperature Scale

The Kelvin temperature scale ranges from 2700K to 6500K. Within that range are a variety of colour temperatures labelled:

Warm White Light ranges from 2700K to 3500K. This produces a calming and relaxing light that is great for bedrooms, living rooms, and dining rooms or restaurants.

Natural White Light is in the 3500K to 4500K range. Cool and clean, this LED colour most closely mimics sunlight, which makes it good for use in almost any location. Basements, garages and other dark places that don’t have a lot of natural light are a good place for cool white LED lights.

Daylight White Light ranges from 5000K-6000K. This is a crisp and clear white light that is great for garages, security lights, offices, or retail locations.

Cool White Light is between 6000K and 7000K. These are good in commercial and industrial applications or any situation in which you want to foster alertness.

That helps?

RWR Loc: La Mesa, CA

John_F wrote:

I have a very old cheat sheet card tucked into the bottom of the camera bag that lists lighting temperatures, in K

3000 incandescent
3700 incandescent
4000 fluorescent
4500 white fluorescent
5500 clear sunlight
6500 cloudy
7500 clear northern sky

I have two lines to put in for LED lighting

Any know the good numbers.

Every LED lamp I’ve bought has the degrees K on the package.

Joe Blow

chaman wrote:

LED Colour Temperature Scale br br The Kelvin tem... (show quote)

Very good summary.

As an FYI, bright sunlight generally has a 5500-6000K. However, taking a picture under a shady tree or shelter can raise the color temperature to 8000K

For an article on color temperature and color rendering index. http://lowel.tiffen.com/edu/color_temperature_and_rendering_demystified.html

BHC Loc: Strawberry Valley, JF, USA

Does this help?

(Download)

Kiwi1 Loc: New Zealand

Yes I also investigated this recently for additonal lighting for use with macro and unfortunately there is a wide variation. Some even around 4000 still throw a yellow cast similar to incandesant so could be tricky mixing them with flash. I'm probably going to buy something 4500 is currently as high as I can find and test it fortunately the reseller will allow me to return it. I did previously use contractor lighting and managed to find haligen daylight bulbs of 5000 and it worked brillantly but I did not mix it with flash. That was for interior photography and It was so close to daylight you could not tell the daylight portion from the boost lighting. Problem with it is a lot of heat and I was always nervous I would knock it over. So I am keen to find a cheap LED solution its a whole lot safer for sure.

RWR Loc: La Mesa, CA

Kiwi1 wrote:

Yes I also investigated this recently for additona... (show quote)

I use Feit 5000° K “Natural Daylight” LED bulbs from Costco for all my indoor work, including slide copying.
https://www.costco.com/CatalogSearch?dept=All&keyword=Feit+Natural+Daylight+LED+Bulbs&pageSize=96

Julian Loc: Sarasota, FL

...

Julian Loc: Sarasota, FL

chaman wrote:

LED Colour Temperature Scale br br The Kelvin tem... (show quote)

Your first statement is not quite correct. Rather: "Color temperatures is a way to describe the light appearance provided by a source and it is measured in degrees of Kelvin (K) on a scale of 1,000 to 10,000" Typically however, commercial and lighting application Kelvin temperatures are on a scale of 2,000K to 6,500K.

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

John_F wrote:

I have a very old cheat sheet card tucked into the bottom of the camera bag that lists lighting temperatures, in K

3000 incandescent
3700 incandescent
4000 fluorescent
4500 white fluorescent
5500 clear sunlight
6500 cloudy
7500 clear northern sky

I have two lines to put in for LED lighting

Any know the good numbers.

I rely on a Gossen Six Color. The old boy still works great. One push of the button and I know. Exactly.

BebuLamar

I don't really trust the temperature rating on light bulbs.

lsimpkins Loc: SE Pennsylvania

RWR wrote:

Every LED lamp I’ve bought has the degrees K on the package.

And the better ones also list the Color Rendering Index (CRI). The higher the CRI, the better the ability of the light source to show the colors in a manner similar to that of an ideal natural light source. In the case of LEDs, light tends to peak greatly at one or more color temperatures. LEDs with higher CRI have a broader spectrum of light emission. There was a good article on this in Shutterbug a while back.

Nikon Shooter17 Loc: Glenwood, MN

BHC wrote:

Does this help?

Thats the one I have...I just started using the K White balance on my D7200...finally read what that was all about...I like the results over auto for sure...does anyone else use K on a regular basis?

ecurb1105

John_F wrote:

I have a very old cheat sheet card tucked into the bottom of the camera bag that lists lighting temperatures, in K

3000 incandescent
3700 incandescent
4000 fluorescent
4500 white fluorescent
5500 clear sunlight
6500 cloudy
7500 clear northern sky

I have two lines to put in for LED lighting

Any know the good numbers.

Does anyone know if LED lights emit in a continuous spectra?
Cool white, etc flurouescent as well as sodium vapor, Mercury vapor lighting all had discontious spectra emissions that we had to filter to correct back in the film era.