can someone explain what cool and warm is?

haagen_dazs · 8th May 2005

can someone explain in layman terms what a cool image or warm image is?

i know that if an image is cool, one can put on a warming filter...
but for the opposite, is there a cooling filter?

thanks alot guys !

jumbocrab · 8th May 2005

The common description for an image that has a bluish tinge is cool, and an image that has a reddish/orangy tinge is warm.

Clown · 8th May 2005

draw a vertical line x=3.5 and u'll have the cool colors on the left and the warm colors on the right.

a cool image will have a cool color cast and vice versa.

image taken from http://www.efg2.com/Lab/Graphics/Col...llTriangle.htm

extra reading on color mixing: http://www.glasshaus.com/samplechapt...59/default.asp

candy · 8th May 2005

its the same thing as ur light bulbs. all light has a colour temperature - which is measured in kelvins.

the higher the kelvin, the more intense the blue spectrum (till our eyes cannot differentiate and sees it all as white). the lower the kelvin, the stronger the red spectrum, hence a colour which is more orange/red (warm).

same in effect, ur FL daylight/whitelight tubes have a higher kelvin reading than ur warmlight tubes.

haagen_dazs · 9th May 2005

so if a photo is properly well exposed...
can one tell from the naked eye that it is cooler or warmer ?
what is the accepted norm? or is it more like what one really likes (a subjective view) when taking a photo?

i know that my 10D allows me to change the colour setting..
but i never really thought much about it.

however i would like to know what i can really do with it.

any advise on websites to read about this issue?

8th May 2005	#1
haagen_dazs Member Join Date: May 2002 Location: New YorkNew JerseyBoston Posts: 1,074	can someone explain what cool and warm is? can someone explain in layman terms what a cool image or warm image is? i know that if an image is cool, one can put on a warming filter... but for the opposite, is there a cooling filter? thanks alot guys !

8th May 2005	#3
Clown Moderator Join Date: Mar 2003 Posts: 2,820	draw a vertical line x=3.5 and u'll have the cool colors on the left and the warm colors on the right. a cool image will have a cool color cast and vice versa. image taken from http://www.efg2.com/Lab/Graphics/Col...llTriangle.htm extra reading on color mixing: http://www.glasshaus.com/samplechapt...59/default.asp __________________ ~DI/Commercial Portfolio and Travel Gallery~ ~Blog~

8th May 2005	#2
jumbocrab Member Join Date: Jun 2004 Posts: 410	The common description for an image that has a bluish tinge is cool, and an image that has a reddish/orangy tinge is warm.

8th May 2005	#4
candy Member Join Date: Apr 2005 Location: candy lane Posts: 70	its the same thing as ur light bulbs. all light has a colour temperature - which is measured in kelvins. the higher the kelvin, the more intense the blue spectrum (till our eyes cannot differentiate and sees it all as white). the lower the kelvin, the stronger the red spectrum, hence a colour which is more orange/red (warm). same in effect, ur FL daylight/whitelight tubes have a higher kelvin reading than ur warmlight tubes.

9th May 2005	#5
haagen_dazs Member Join Date: May 2002 Location: New YorkNew JerseyBoston Posts: 1,074	so if a photo is properly well exposed... can one tell from the naked eye that it is cooler or warmer ? what is the accepted norm? or is it more like what one really likes (a subjective view) when taking a photo? i know that my 10D allows me to change the colour setting.. but i never really thought much about it. however i would like to know what i can really do with it. any advise on websites to read about this issue?