Strange optical effect
Can someone, please, explain how this strange effect was achieved: I
saw it in the videoclip
"Air Rings" (at rent-a-cloud.com). It is a large illuminated ring which
changes shape as the sun moves down. It doesn't look like done via
filter, and I can't think of any 16mm lens that could do it. I know
those pretty well. Perhaps it was a 35mm one??? I emailed their site,
but their cameraman is not available at present.
Grateful for answer.
Xelob
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