posted on Nov, 5 2008 @ 11:28 AM
Frankly, the explanation of these optical mysteries is very simple. You need a very small bright source. Venus is good. You need a video camera with
an adjustable aperture. The cheaper cameras use a three or four blade mechanism. This produces triagular or diamond shaped light path. And you need a
typical lens system which will zoom in and out of fosus, so the point source becomes a disc-like image, usually containg concentric rings due to the
optical phenomenon called diffraction. Put all these together and you get a pulsating orb/UFO. Or maybe not, depending on guillibilty.
I've posted this several times before, but it serves to illustrate the effect.
This is a video I made of the star Sirius using a 10" diameter telescope fitted with a CCD camera. Apart from the spectrum of colors caused by
scintillation due to atmospheric turbulence, the focus was pulled in and out to enhance the colors but also to demonstrate diffraction rings. My
defocussed image has a central 'hole' or dark spot. This is due to the design of the 'scope, which had a secondary mirror located at this point.
Note also how similar this defocussed image is to the 'quantum spacecraft' touted by David Serada in his STS-75 'Shuttle Tether Incident'.