A&P Shadow temp..(repost from main)

Discussion in 'Lifestyle' started by Furiofire, Jan 29, 2005.

  1. Furiofire

    Furiofire Guest

  2. Jcolman

    Jcolman Active Member OT Supporter

    Aug 19, 2002
    Likes Received:
    east coast
    Not really. This pic was simply shot on an overcast day. It doesn't illustrate color temperature differences.

    Color temperature has to do with the way your digital camera or film reproduces color under different lights. For example, the light in your living room lamp is around 2300 degrees Kelvin (degrees Kelvin is the way color temperature is measured). Daylight has a color temperature of around 6500 degrees. What this means is that if you were to take a pic in your living room of the lamp along with a lot of daylight streaming in through the window and your camera or film was balanced for daylight, the lamp and anything lit by it, would appear to be orange or yellow in color instead of white. Conversely, if you balance your camera or film to match the lamp, the area in your living room lit by daylight would appear to be blueish in color.

    Overcast days and shadow areas have a higher color temperature than sunlight. That's why shadows often appear to be slightly "cooler" than areas lit by sunlight.

    FYI, the color temperature of flash or strobe light is the same as daylight.
  3. Furiofire

    Furiofire Guest

    Yes you are close..

    1500 k Candlelight
    2680 k 40 W incandescent lamp
    3000 k 200 W incandescent lamp
    3200 k Sunrise/sunset, and 3200K location and studio lighting.
    3400 k Tungsten lamp
    3400 k 1 hour from dusk/dawn
    5000-4500 k Xenon lamp/light arc
    5400 HMI
    5500 k Sunny daylight around noon
    5500-5600 k Electronic photo flash
    6500-7500 k Overcast sky
    9000-12000 k Blue sky

    Most auto white balances will give a blue cast to the upper regions of the zone system. This is the way most CCD's calculate the light temperature.. The white snow will reflect the blue sky..
    Last edited by a moderator: Jan 30, 2005

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