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147 a – Nikon D750 DSLR Camera (Body Only) User Manual

Page 175

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147

A

Color Temperature

The perceived color of a light source varies with the viewer and other
conditions. Color temperature is an objective measure of the color of a
light source, defined with reference to the temperature to which an
object would have to be heated to radiate light in the same
wavelengths. While light sources with a color temperature in the
neighborhood of 5000–5500 K appear white, light sources with a lower
color temperature, such as incandescent light bulbs, appear slightly
yellow or red. Light sources with a higher color temperature appear
tinged with blue.

“Warmer” (redder) colors

“Cooler” (bluer) colors

q

I

(sodium-vapor lamps): 2700 K

w

J

(incandescent)/

I

(warm-white fluorescent.): 3000 K

e

I

(white fluorescent): 3700 K

r

I

(cool-white fluorescent): 4200 K

t

I

(day white fluorescent): 5000 K

y

H

(direct sunlight): 5200 K

u

N

(flash): 5400 K

i

G

(cloudy): 6000 K

o

I

(daylight fluorescent): 6500 K

!0

I

(high temp. mercury-vapor): 7200 K

!1

M

(shade): 8000 K

Note

: All figures are approximate.

3000

4000

5000

6000

8000

10000

[ K ]

q w

r

e

tyu i

o

!0 !1