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الوقت من اليوم .. التصوير الملون .. المرشد خطوة بخطوة للتصوير الفوتوغرافي
Time of day
We saw on page 52 how the position and height of the sun changes subject appear- ance . In color photography , these changes are even more important .
Daylight alters in color throughout the day and year . The color temperature of the light which reaches us gradually increases with the height of the sun . When the sun is near the horizon most blue waves are filtered out by scattering and absorption . Thus at dawn and sunset the light is predominantly orange or red . You can see in this series of pictures how the color of the light only matches the color balance of daylight film strictly at about noon , when the blue light is least filtered by the atmosphere . Dawn and dusk are the periods of most rapid change in the lighting color .
The direction of the lighting also changes throughout the day and the year . Around midsummer describes a much wider arc in the sky than during winter , and rises and sets at further separated points on the horizon . Early morning or late evening on a summer day may be the only time the sun directly illuminates a north - facing building .
Lighting quality is most affected by the weather . In temperate climates water vapor in the atmosphere sometimes softens the light . This is most noticeable at dawn or dusk , when the oblique light waves have to travel a greater distance through the diffusing haze .
7 am
The early lighting is indirect as the sun has not yet risen . Tones in the subject are merged , and the light is predominantly blue - giving a cold appearance to the scene .
9.30 am
The sun has risen and the direct sunlight separates forms and re- veals detail in the scene . The low , hard side - lighting is quite yellow and brings out a full range of colors in the subject .
12 noon
The sun is now high , facing the camera , far left , and its light is nearest to being " colorless " . The changed lighting direction has reduced color saturation of the sky . Detail in the near surfaces of the tower is suppressed .
5 pm
Clouds still obscure the sun , which is now much lower in the sky , left . Light is reflected off the water and pale sky to give a high contrast . almost monochromatic effect .
6 pm
As the sun begins to set , right , stronger colors appear , and rapidly change in the sky . The shadows are more intense and the form of the bridge is less distinct .
6.30 pm
Half an hour later , far right , the sky has changed color significantly as the sun has dropped below the horizon . It is now bluer , but the colors are still mainly warm . Shadows are dark , but shapes silhouetted against the sky are strengthened .
Time of day
We saw on page 52 how the position and height of the sun changes subject appear- ance . In color photography , these changes are even more important .
Daylight alters in color throughout the day and year . The color temperature of the light which reaches us gradually increases with the height of the sun . When the sun is near the horizon most blue waves are filtered out by scattering and absorption . Thus at dawn and sunset the light is predominantly orange or red . You can see in this series of pictures how the color of the light only matches the color balance of daylight film strictly at about noon , when the blue light is least filtered by the atmosphere . Dawn and dusk are the periods of most rapid change in the lighting color .
The direction of the lighting also changes throughout the day and the year . Around midsummer describes a much wider arc in the sky than during winter , and rises and sets at further separated points on the horizon . Early morning or late evening on a summer day may be the only time the sun directly illuminates a north - facing building .
Lighting quality is most affected by the weather . In temperate climates water vapor in the atmosphere sometimes softens the light . This is most noticeable at dawn or dusk , when the oblique light waves have to travel a greater distance through the diffusing haze .
7 am
The early lighting is indirect as the sun has not yet risen . Tones in the subject are merged , and the light is predominantly blue - giving a cold appearance to the scene .
9.30 am
The sun has risen and the direct sunlight separates forms and re- veals detail in the scene . The low , hard side - lighting is quite yellow and brings out a full range of colors in the subject .
12 noon
The sun is now high , facing the camera , far left , and its light is nearest to being " colorless " . The changed lighting direction has reduced color saturation of the sky . Detail in the near surfaces of the tower is suppressed .
5 pm
Clouds still obscure the sun , which is now much lower in the sky , left . Light is reflected off the water and pale sky to give a high contrast . almost monochromatic effect .
6 pm
As the sun begins to set , right , stronger colors appear , and rapidly change in the sky . The shadows are more intense and the form of the bridge is less distinct .
6.30 pm
Half an hour later , far right , the sky has changed color significantly as the sun has dropped below the horizon . It is now bluer , but the colors are still mainly warm . Shadows are dark , but shapes silhouetted against the sky are strengthened .
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