English Language Teaching in Japan
Depth of Field (DOF) Explained (The simple explanation)
| This is about how much blur there is, and how changing the aperture can change how deep the blur is. F1.4 is extremely shallow, and so most of the fore and back grounds are blurred out; F22 and above has more of the picture in focus. Click on these below and see what I mean. Also notice that F5.6 lets in lots of light, and F22 lets in much less. Also see Depth of Field. |
Click this picture to see how it originally worked on manual cameras, where you manually turned the dial. |
| F-Stop | The scene | Close ups | Depth (simulated) |
| F1.7, 1/250, iso100. |
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< On Sony A200 with Minolta 50mm 1.4 | |
| F4, 1/250, iso100. |
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< On Sony A200 with Minolta 100 2.8 macro lens | |
| F5.6, 1/125, iso80. |
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On Konica Minolta Alpha Sweet (5d) with 18-70mm lens
Click on these to see details |
| F9, 1/125, iso80 |
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| F18, 1/125, iso400 |
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| F22, 1/125, iso800 |
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| F36, 1/125, iso1600 |
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| Examples: Also see Depth of Field. | |
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F8, 1/160, iso400; 75-300mm lens at 300mm. Little Flute. KM Alpha Sweet, digital |
F5, 1/125, iso100, Canon EOS 5d. By danielgilbey, Crestock, 2008 |
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> F9, 1/160, iso400, 75-300mm lens at 200 (handheld, but held steady against a pole) |
F8, 0.8sec, ISO100 KM Alpha Sweet, digital, with Minolta 100mm 2.8 macro. |
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