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04/03/2006 03:38:36 AM · #1 |
I was at a concert last night, and the lighting was UNBELIEVABLE. the fog machines they had was really cool, and the blue,red flood lights would go through them and make some really cool effects if used a slower shutter speed.
would this meet the challenge? just wanted to ask. thinking about entering, but would like to know first if this is considered refraction.
thank you all so much. |
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04/03/2006 03:49:22 AM · #2 |
I dont think light passing through fog is refraction, it's simply the light hitting the fog particles.
Message edited by author 2006-04-03 03:49:35.
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04/03/2006 04:19:00 AM · #3 |
Originally posted by Konador:
I dont think light passing through fog is refraction, it's simply the light hitting the fog particles. |
However, if the shot is a killer one the DPC voters will probably award it with a ribbon. :P
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04/03/2006 04:48:18 AM · #4 |
I think it does meet the challenge.
refraction:
1. The bending of light as it passes from one medium to another
2. The action of changing the direction of a light wave, so the light enters the object in one direction, and leaves it in another.
3. The process by which the direction of light changes as it passes obliquely from one medium to another in which its speed is different.
etc....
Fog it's just a different medium, just like water is.
Originally posted by Konador:
I dont think light passing through fog is refraction, it's simply the light hitting the fog particles. |
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04/03/2006 05:23:02 AM · #5 |
| I can't say for certain, but it seems as though it may depend on the type of fog. Some fogs are smoke particles and others use dry ice or liquid nitrogen to create a very dense water vapor. Light will refract going through the water vapor, same as it does in the sky (rainbows), but probably wouldn't do much refraction in smoke (more light scattering). If the photo shows signs of light being "bent" then submit the photo. Otherwise, I'd err on the safe side and not submit. |
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04/04/2006 05:52:20 AM · #6 |
I have already entered this challenge but thought of a possibility today and wondered if anybody could answer. Are sunrays breaking out from behind clouds in beams of light classed as refraction?
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04/04/2006 06:12:24 AM · #7 |
Originally posted by Judi:
I have already entered this challenge but thought of a possibility today and wondered if anybody could answer. Are sunrays breaking out from behind clouds in beams of light classed as refraction? |
Those are called crepuscular rays and are just shadows and light, sorry. The light is scattered by the stuff in the air, refraction may play a part but that would be for voters to decide. |
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04/04/2006 06:24:23 AM · #8 |
Originally posted by alfresco:
Originally posted by Judi:
I have already entered this challenge but thought of a possibility today and wondered if anybody could answer. Are sunrays breaking out from behind clouds in beams of light classed as refraction? |
Those are called crepuscular rays and are just shadows and light, sorry. The light is scattered by the stuff in the air, refraction may play a part but that would be for voters to decide. |
Okay thanks for that.
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