تويت
اختيار العدسات ..
المبادئ الأساسية للبورتريه ..
كتاب التصوير الفوتوغرافي
Choosing lenses
You should always choose your lens carefully making sure that it matches the purpose of your picture . In general , a long lens is best for close - ups ; a standard lens for a medium - long shot ; and a wide - angle lens is most suitable when you are working in a limited space , or to exaggerate part of the sitter for effect .
Traditionally , portraitists used only long lenses , because these render facial features in ´exactly the right proportions , without any dis tortion . With a shorter lens ( below 90 mm for 35 mm cameras ) you have to bring the camera very close to the face in order to fill the whole frame with the head . In a full face portrait , the nose . may be distorted . To avoid this , shoot a three - quarter view or a profile , and be careful not to place parts of the sitter ( like the knees and hands ) too close to the camera , or they will appear too large .
The more modern style of portraiture , which shows the sitter in his environment , suits medium and short focal length lenses . Many photojournalists use wide - angles in order to include part of the interior as well as the sitter , even when working in a very small room . And a standard or wide - angle lens allows more contact between photographer and sitter when you use a long lens , you have to be further from your subject , making natural conversation difficult .
Standard lens shot ▷ A standard lens allows you to include some of the sitter's environment - in this case his shop . I placed my subject in near profile to avoid distortion . Pentax 6 × 7 , 105 mm , 1/30 sec at f11 , Ektachrome 200 .
Wide - angle distortion
I shot from a very low angle , deliberately position ing myself close to the sitter's face . As a result , his chin appears much larger than the rest of his face . Pentax 6x7 , 55 mm , 1/30 sec at f11 , Ektachrome 200 .
Using selective focus The area of sharp focus in your picture depends on f stop , distance from camera to sitter , and lens focal length , see diagram . Here , I used a wide aperture , focusing on the sitter , to blur the lamps in the foreground . Pentax 6x7 , 105 mm , 1/60 sec at f5.6 , Ektachrome 200 .
Using a long lens ▷ A long focal length lens is ideal for this kind of head and shoulders portrait . The sitter's hands are much nearer the camera than his head , and a shorter lens would have enlarged them disproportionately . The narrow depth of field throws unnecessary background and foreground elements out of focus . Pentax 6x7 , 200 mm , 1/15 sec at f16 , Ektachrome 200 .
المبادئ الأساسية للبورتريه ..
كتاب التصوير الفوتوغرافي
Choosing lenses
You should always choose your lens carefully making sure that it matches the purpose of your picture . In general , a long lens is best for close - ups ; a standard lens for a medium - long shot ; and a wide - angle lens is most suitable when you are working in a limited space , or to exaggerate part of the sitter for effect .
Traditionally , portraitists used only long lenses , because these render facial features in ´exactly the right proportions , without any dis tortion . With a shorter lens ( below 90 mm for 35 mm cameras ) you have to bring the camera very close to the face in order to fill the whole frame with the head . In a full face portrait , the nose . may be distorted . To avoid this , shoot a three - quarter view or a profile , and be careful not to place parts of the sitter ( like the knees and hands ) too close to the camera , or they will appear too large .
The more modern style of portraiture , which shows the sitter in his environment , suits medium and short focal length lenses . Many photojournalists use wide - angles in order to include part of the interior as well as the sitter , even when working in a very small room . And a standard or wide - angle lens allows more contact between photographer and sitter when you use a long lens , you have to be further from your subject , making natural conversation difficult .
Standard lens shot ▷ A standard lens allows you to include some of the sitter's environment - in this case his shop . I placed my subject in near profile to avoid distortion . Pentax 6 × 7 , 105 mm , 1/30 sec at f11 , Ektachrome 200 .
Wide - angle distortion
I shot from a very low angle , deliberately position ing myself close to the sitter's face . As a result , his chin appears much larger than the rest of his face . Pentax 6x7 , 55 mm , 1/30 sec at f11 , Ektachrome 200 .
Using selective focus The area of sharp focus in your picture depends on f stop , distance from camera to sitter , and lens focal length , see diagram . Here , I used a wide aperture , focusing on the sitter , to blur the lamps in the foreground . Pentax 6x7 , 105 mm , 1/60 sec at f5.6 , Ektachrome 200 .
Using a long lens ▷ A long focal length lens is ideal for this kind of head and shoulders portrait . The sitter's hands are much nearer the camera than his head , and a shorter lens would have enlarged them disproportionately . The narrow depth of field throws unnecessary background and foreground elements out of focus . Pentax 6x7 , 200 mm , 1/15 sec at f16 , Ektachrome 200 .
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