Back to basics: Photography terms / slang

[dr_zero]

that's kind of better, I've never heard of red being called warm,

second guessing myself before posting I googled and evry reference I could find simply said yellow or yellowish for warm.. no reference to red.

Tell that to the guy who is standing too close to the fire


Here is a link to overall warm colors definition

http://www.ahartman.com/apl/patterns/apl250.htm

It is not the color of the things, the surfaces, which make a place warm or cold, but the color of the light. What exactly does this mean? We can estimate the color of the light at a particular point in space by holding a perfectly white surface there. If the light is warm, this surface will be slightly tinted toward the yellow-red. If the light is cold, this surface will be slightly tinted toward the blue-green. This tinting will be very slight: indeed, on a small white surface it may be so hard to see that you need a spectrometer to do it.

 

[MICKEY88]

Tell that to the guy who is standing too close to the fire


Here is a link to overall warm colors definition

http://www.ahartman.com/apl/patterns/apl250.htm

It is not the color of the things, the surfaces, which make a place warm or cold, but the color of the light. What exactly does this mean? We can estimate the color of the light at a particular point in space by holding a perfectly white surface there. If the light is warm, this surface will be slightly tinted toward the yellow-red. If the light is cold, this surface will be slightly tinted toward the blue-green. This tinting will be very slight: indeed, on a small white surface it may be so hard to see that you need a spectrometer to do it.

nevermind,,just found one..LOL

 

[Geoff_M]

I too have only heard "warm" defined as a reddish tint historically. "Cool" is blue, "warm" is red... particularly when talking about skin tones.

 

[MICKEY88]

I too have only heard "warm" defined as a reddish tint historically. "Cool" is blue, "warm" is red... particularly when talking about skin tones.

that's interesting, because most things I found when I googled it refer to warm as yellow, the primary one being the yellow cast from sunset

 

[Geoff_M]

I don't doubt you, but here's a prime example: Hoya Filters

 

[seashoreCM]

Because the development stage of film processing depends on reasonable and sometimes precise timing, stop bath as opposed to plain water is used to stop the development process (more quickly) particularly when there may be a delay getting the film to the next stage, fixing (fixer solution)

One of the problems seen with film developing, including one hour services, is fading or discoloration because the film and/or pirnts was not rinsed thoroughly after the last stage (fixing).

Digital camera hints: http://members.aol.com/ajaynejr/digicam.htm

 

[MICKEY88]

I don't doubt you, but here's a prime example: Hoya Filters

WOW..I just found this on a website with photography tips..


"Color temperature can be a bit confusing since it seems rather backwards, but the orange/amber range is actually cool, and the blue range is warm. "

 

[Pea-n-Me]

WOW..I just found this on a website with photography tips..


"Color temperature can be a bit confusing since it seems rather backwards, but the orange/amber range is actually cool, and the blue range is warm. "

Kelvin scale in photography

 

[dr_zero]

Kelvin scale in photography

For some reason it was blocked for me so here is another

http://photography.about.com/od/takingpictures/a/colortemperatur.htm

Contrary to what colors we tend to think of as "hot" and "cold", red is actually a cooler temperature than blue according to Kelvin scale. Still, in photographic terms, we refer to bluish light tint photographs as "cool" and reddish light tint photographs as "warm".


So they are both right just depends on the context.

 

[Geoff_M]

That description is correct. If you're talking about the actual "temperature", then red is colder than blue on the Kelvin scale. This is true for astrophysics too... Aging "Red Giant" stars are cooler than their hot infant "Blue Dwarf" counterparts.