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| node: | Re[3]: 26.01.2015-14:42:08 |
| template: | 4 |
| parent: | Re[2]: 26.01.2015-14:42:08 |
| owner: | mofo |
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| created: | 29.01.2015 - 14:09:27 |
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Tak som trocha zagooglil a here you go:
http://www.cambridgeincolour.com/tutorials/depth-of-field.htm
"Note that focal length has not been listed as influencing depth of field, contrary to popular belief. Even though telephoto lenses appear to create a much shallower depth of field, this is mainly because they are often used to magnify the subject when one is unable to get closer. If the subject occupies the same fraction of the image (constant magnification) for both a telephoto and a wide angle lens, the total depth of field is virtually* constant with focal length! This would of course require you to either get much closer with a wide angle lens or much further with a telephoto lens, as demonstrated in the following chart:"
Takze som to vtedy dobre zmeral:)
http://www.cambridgeincolour.com/tutorials/depth-of-field.htm
"Note that focal length has not been listed as influencing depth of field, contrary to popular belief. Even though telephoto lenses appear to create a much shallower depth of field, this is mainly because they are often used to magnify the subject when one is unable to get closer. If the subject occupies the same fraction of the image (constant magnification) for both a telephoto and a wide angle lens, the total depth of field is virtually* constant with focal length! This would of course require you to either get much closer with a wide angle lens or much further with a telephoto lens, as demonstrated in the following chart:"
Takze som to vtedy dobre zmeral:)