Nikon J3 White, 27658, 27649, 27638 148, DAuto Power Off, DPreset White Balance, AColor Temperature

DAuto Power Off

White balance measurement will end without a new value being acquired if no operations are performed for the time selected for Auto power off in the setup menu (0 160; the default is 1 minute).

DPreset White Balance

The camera can store only one value for preset white balance at a time; the existing value will be replaced when a new value is measured. Note that exposure is automatically increased by 1 EV when measuring white balance; in mode M, adjust exposure so that the exposure indica- tor shows ±0 (0 37).

AColor 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 wave- lengths. While light sources with a color temperature in the neighbor- hood 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. The camera white balance options are adapted to the follow- ing color temperatures (all figures are approximate):

•Sodium-vapor lamps: 2700 K

•J(incandescent)/ Warm-white fluorescent: 3000 K

•White fluorescent: 3700 K

•Cool-white fluorescent: 4200 K

•Day white fluorescent: 5000 K

•H(direct sunlight): 5200 K

•N(flash): 5400 K

•G(cloudy): 6000 K

•Daylight fluorescent: 6500 K

•Mercury-vapor lamps: 7200 K

•M(shade): 8000 K

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