[golfbulldog]

Jeff,

I know that you have this little area for your own stuff, a good idea - but I would advise you to look at some of this stuff about artifact on video camera footage:-

http://dvxuser.com/jason/CMOS-CCD/

It may or may not be relevant to the above debate...but it must be worth you looking into in your usual thorough way ...it may save you some brain cells in the long run.... trying to use physics to explain an artifact is fairly fruitless...so I would want to make sure that image is real or artifact first.

Hope this helps.