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01/28/2008 07:01:31 PM · #1 |
I would like to see what other DPCers think of this. It is "a first ever" photograph of a Kern Arc, that was reported on Spaceweather.
Full story and explanation here..
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01/28/2008 08:59:48 PM · #2 |
Gee thanks ... now my brain is exploding ... heh heh
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01/28/2008 09:34:44 PM · #3 |
I am just not sure if this is what they think it is. Being shot with a fisheye, could this not all be reflection on the lens? I don't have a fisheye nor have I shot with one, but it seems to me. If what is in the sky is a circumzenithal arc and Kerns arc, then he has a circumzenithal arc on the horizon, and all the way around the lens, and also 2 Kerns arcs just above the horizon also.
To me it seems to be aberration on the surface of the lens (fisheye). But I am not the expert. Would this be the same with a "regular lens?" or seen by the naked eye?
He also had time to set up a gobo to block the sun (then shoot 18 shots for a stacked image), but it seems to have a round hole, right in the middle of it. (the gobo)
Message edited by author 2008-01-28 21:37:39.
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01/28/2008 09:38:17 PM · #4 |
Originally posted by dacrazyrn:
I am just not sure if this is what they think it is. Being shot with a fisheye, could this not all be reflection on the lens? I don't have a fisheye nor have I shot with one, but it seems to me. If what is in the sky is a circumzenithal arc and Kerns arc, then he has a circumzenithal arc on the horizon, and all the way around the lens, and also 2 Kerns arcs just above the horizon also.
To me it seems to be aberration on the surface of the lens (fisheye). But I am not the expert. Would this be the same with a "regular lens?" or seen by the naked eye?
He also had time to set up a gobo to block the sun (then shoot 18 shots for a stacked image), but it seems to have a round hole, right in the middle of it. |
Heh, I'd have to agree. Given that the lens looks to be pretty poor quality, I'd say its more likely that it's just some bad flare. I don't really know anything about it though, just being cynical. |
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01/28/2008 09:45:38 PM · #5 |
Originally posted by dacrazyrn:
I am just not sure if this is what they think it is. Being shot with a fisheye, could this not all be reflection on the lens? |
While lens flares are possible, even probable under these shooting conditions, the chance that a flare of precisely the position, radius and width to complete the circumzenithal arc is small beyond comprehension. It is almost certainly what they believe it is.
Great conditions, excellent technique... groundbreaking result. |
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01/28/2008 09:56:30 PM · #6 |
I just keep thinking that since the lens is really a bubble shape, that the top part of that "flare" or whatever is positioned on the top of the bubble of the lens as to cause a reflection through the glass to the other side and making the circle.
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01/30/2008 08:14:05 AM · #7 |
Hello From Finland.
I have noticed your comments and i have also some comments.
1. What comes to lens flare/Reflection. Its quite impossible to have any flares or reflections if the sun is BLOCKED.
And the sun was blocked almost in every photo what i take.
2. What comes to poor quality lens. Equipment what i used Was. Nikon D70, Nikon FM, Sigma 15mm EX F:2.8D, Sigma 8mm EX F4. Kern is visible also in Slides. Film Was Kodak Ektachrome E100SW
3. Then the kern. Its real Kern was also reported here. Theres some more photos of the display.
Regards.
Marko Mikkilä
Message edited by author 2008-01-30 08:15:29. |
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01/30/2008 08:26:05 AM · #8 |
Only on DPC! This is SO fascinating... Someone links us to an extremely rare, even unique, photograph of a hotly-debated atmospheric phenomenon: and people with no specific knowledge in the field pop up to "explain" how this "must be" an aberration of the fisheye lens :-) Sometimes we gotta stop being photographer-wonks and just marvel at what's shown to us, you know?
For those who haven't made the connection, the reply immediately before this one is from the actual photographer, who took the time to join up here and explain a little more. To him, I say "Well done! Killer shot!"
R.
Message edited by author 2008-01-30 08:26:33.
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