From: Viktor Golubic <Diverge247.nul> Date: Thu, 23 Aug 2012 21:44:53 -0400 (EDT) Archived: Fri, 24 Aug 2012 06:50:46 -0400 Subject: Re: 'Snowflake' Video From South America >From: Bruce Maccabee <brumac.nul> >To: post.nul >Date: Tue, 21 Aug 2012 12:02:13 -0400 (EDT) >Subject: Re: 'Snowflake' Video From South America >>From: Martin Shough <parcellular.nul> >>To: <post.nul> >>Date: Mon, 20 Aug 2012 12:41:39 +0100 >>Subject: 'Snowflake' Video From South America >>http://tinyurl.com/c6c5pfu >>Subtracting the erratic camera motion and measuring the position >>of the light relative to the house window, I think the object >>seems to drift slowly up and to the left over the rooftop during >>the video. This makes me think of a bright star or planet. But >>of course with no direction or time information to go on it's >>hard to say. The pattern of lights hints at some optical or >>video artefact but I haven't seen an effect exactly like this >>before. Any thoughts? >I wonder if the guy videoed a bright planet using a "star >filter" or something like that on his lens (a diffraction filter >with three gratings that are 120 degrees apart). >He might have used a color filter as well to make the light >approximately monochromatic to avoid color blur that would occur >when a diffraction filter is used with polychromatic light such >as starlight. >Tha latter portion of the video looks like an "emboss" version >of the first part. Pulsations of the image could be a >combination of "focus hunting" by the camera and atmospheric >scintillation. <If all this were to turn out to be true, then it would be a >hoax. Hi Bruce, I think this is a very good suggestion. However, every diffraction filter I know has bilateral symmetry: Where there is the corresponding right half identical to its left. However, this is a seven point polygon (not even numbered) with no bilateral reflection plane. I'm not sure any exist and even if you attempted seven, by default it will a produce a fourteen point pattern (even not odd like this one). Any additional thoughts? My only thinking is that this is a lens flare effect caused by a thin film coating and the shape of the aperture. In that case, the spatial distribution of the flare depends on the shape of the aperture itself which has a seven point symmetry. Viktor Listen to 'Strange Days... Indeed' - The PodCast At: http://www.virtuallystrange.net/ufo/sdi/program/ These contents above are copyright of the author and UFO UpDates - Toronto. They may not be reproduced without the express permission of both parties and are intended for educational use only.
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