文档介绍：46 White Balance Tips Carry a white card or piece of cloth (or
White balance is our bag of fi lters in one make sure you always wear a clean, all
simple button. I am always aware of the WB cotton T-shirt), so you always have a
PERFECT DIGITAL PHOTOGRAPHY setting and have used it often for control or white sample available to take the reading
eff ect. from. If your white shirt has an optical
brightener in it, it will fl uoresce under
Th e following tips illustrate how you can
the strobe’s UV illumination. Just like
capture pelling images no matter
white colors in a funhouse, the white
what actual light is available:
shirt will glow bluish, but you may not
Don’t use the Auto white balance setting. notice it if you’re not in a funhouse dark
Th is may provide an uneven response environment (although it can balance
from frame to frame, as the camera—with your scene oddly). Consider pretesting
even a slight shift of perspective—may your shirts under a UV source. I fi nd that
establish its white balance from a diff erent a folded piece of white typing paper is
“white” it fi nds in the frame. Also, since a practical thing to include in a camera
the purpose of white balance is to bring bag. Use it folded to make it opaque,
white back to true white, the beautiful and photograph at least one image of
“golden hour” hue may be removed from this paper, shot in the same illumination
the photo! in which you’ll ultimately shoot your
primary captures.
Here are some typical color temperatures:
Temperature Ambient Lighting Conditions
20,000+K High mountain open shade
9000–18,000K A blue sky (the higher your altitude, the higher the temperature)
6500–7500K An overcast sky
5300–5650K Electronic fl ash
5500K Daylight, around noon on a sunny day
5000–4500K Xenon lamp
3400–3600K “Golden hour,” one hour before sunset or after sunrise
4000K Warm white fl uorescent bulbs
2750–3000K A tungsten lamp, found in mos