تويت
ضوء الشمس - ٣ - مصدر الضوء .. كيفية التقاط وتطوير الصور بالأبيض والأسود
THE LIGHT SOURCE
SUNLIGHT
As the sun moves higher , in the late morning , the quality of the light changes , and on a bright cloudless day the lighting effect can be quite stark - similar to that of an overhead spotlight . Shadows are cast underneath objects instead of to one side , and this is often unattractive . Portraits in particular suffer from the combined effect of high contrast and shadows that pool underneath the eye- brows and face . If you cannot avoid taking a portrait photograph under these conditions , it may be better to change the location , and position the sitter in a shaded setting . There are , with black - and - white film , no problems with colour temperature in doing this . There will be a considerable difference in the light level and contrast as you move from sun to shade , but this can be helped by choosing a setting close to a sunlit wall , or by using white card or cloth as a reflector .
ABOVE LEFT In general outdoor photography , look out for scenes in which there are already strong shapes and contrasting tones . They can produce graphic , hard images in conjunction with deep shadows and hard light .
TOP Although the warm hues of a setting sun are not available to the black and white photographer , it is possible to use flare when shooting into the sun to lend atmosphere .
ABOVE Even when working indoors , strong sunlight can be used to great advantage . Here , powerful rays have bleached out , giving the picture a ' classical ' look .
In more general outdoor photography , look for scenes in which there are already strong shapes and contrasting tones . These , in combination with deep shadows and hard light , can produce hard , graphic images . Black - and - white materials also allow this effect to be exaggerated a strong red filter will enhance both the dark tone of a blue sky and the shadows ( which are illumin- ated by blue skylight and a hard paper grade at the printing stage .
When the sun is in a medium - high position , it can be used for very high contrast images , either by shooting upwards from a low viewpoint , or by aiming towards the sun's reflection in water . Both cases can produce stark silhouettes .
The Difference a Filter Makes
BELOW Shooting into the sun always brings the risk of a bleached sky ; but
adjusting the exposure to compensate can lose all detail ( bottom ) . The problem can be overcome to some extent by using a neutral graduated filter .
THE LIGHT SOURCE
SUNLIGHT
As the sun moves higher , in the late morning , the quality of the light changes , and on a bright cloudless day the lighting effect can be quite stark - similar to that of an overhead spotlight . Shadows are cast underneath objects instead of to one side , and this is often unattractive . Portraits in particular suffer from the combined effect of high contrast and shadows that pool underneath the eye- brows and face . If you cannot avoid taking a portrait photograph under these conditions , it may be better to change the location , and position the sitter in a shaded setting . There are , with black - and - white film , no problems with colour temperature in doing this . There will be a considerable difference in the light level and contrast as you move from sun to shade , but this can be helped by choosing a setting close to a sunlit wall , or by using white card or cloth as a reflector .
ABOVE LEFT In general outdoor photography , look out for scenes in which there are already strong shapes and contrasting tones . They can produce graphic , hard images in conjunction with deep shadows and hard light .
TOP Although the warm hues of a setting sun are not available to the black and white photographer , it is possible to use flare when shooting into the sun to lend atmosphere .
ABOVE Even when working indoors , strong sunlight can be used to great advantage . Here , powerful rays have bleached out , giving the picture a ' classical ' look .
In more general outdoor photography , look for scenes in which there are already strong shapes and contrasting tones . These , in combination with deep shadows and hard light , can produce hard , graphic images . Black - and - white materials also allow this effect to be exaggerated a strong red filter will enhance both the dark tone of a blue sky and the shadows ( which are illumin- ated by blue skylight and a hard paper grade at the printing stage .
When the sun is in a medium - high position , it can be used for very high contrast images , either by shooting upwards from a low viewpoint , or by aiming towards the sun's reflection in water . Both cases can produce stark silhouettes .
The Difference a Filter Makes
BELOW Shooting into the sun always brings the risk of a bleached sky ; but
adjusting the exposure to compensate can lose all detail ( bottom ) . The problem can be overcome to some extent by using a neutral graduated filter .
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