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Old 29-09-2009, 10:37 PM
Waxing_Gibbous's Avatar
Waxing_Gibbous (Peter)
Grumpy Old Man-Child

Waxing_Gibbous is offline
Join Date: Jul 2009
Location: South Gippsland
Posts: 1,768
Its an annoying trait of some Nikons too. May have something to do with the sensors (both co's use Sony)
This artifact, when it occurs, is particularly noticable at high ISO numbers and dark backgrounds. All sorts of theories abound. Try over on earch for "banding" & "EOS 40D".
If its still under warranty send it back to Canon for a tune-up.
Good luck.
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