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10/21/2005 02:15:23 PM · #1 |
| Is diffuse light obtained when you bounce the light source off something (cardboard, etc) instead of focusing it directly on the source? |
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10/21/2005 02:22:07 PM · #2 |
| From what I understand... |
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10/21/2005 02:24:30 PM · #3 |
Yes, that's right. The larger the object that you're bouncing the light off of, and the farther away from the subject it is, the more diffuse the light. You can also diffuse light by shining it through an opaque material.
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10/21/2005 02:26:19 PM · #4 |
| Yes. That's what it means. |
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10/21/2005 02:27:33 PM · #5 |
| Thanks everyone! I also assume this effects the exposure settings versus what it would be for direct lighting. |
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10/21/2005 02:35:13 PM · #6 |
Originally posted by PhilipDyer:
the farther away from the subject it is, the more diffuse the light. |
This is not correct.
The larger the light source the softer or more diffuse it will appear. The smaller the source the harder or more specular the light. But these values are related to the distance from the subject. The sun is the largest object in our solar system but it is extremely far away and appears very small to us. The sun is an extremely specular source here on earth. If you moved dramatically closer to sun the light would become more diffuse as the size of the source became larger in scale.
A light from a large softbox near the subject will appear diffuse. Move this softbox far away and it will appear specular because its scale when compared to the subject has changed. |
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