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Topics - triise

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Technical Support / Strange pattern in long exposure images
« on: February 18, 2013, 06:14:18 PM »
I was out shooting the Aurora Borealis tonight, and when I got my images on the computer screen I noticed some strange circular patterns in most of the images. Anyone seen this before?

It appears dead center in all the images where there is some light.

EXIF: 5D3, EF 17-40L 4.0 @ 30.0 sec f/ 5.0 ISO 800.

See cropped screenshot attached.

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