edu99 Hatchling 2 posts Joined Mar 2010 More info | Mar 13, 2010 23:50 | #1 I have just noticed my 5D (mark 1) doing this recently .. consistently, when taking photos an odd horizontal banding appears in the top quarter of the image. eg -  and closeup:  I tried searching the web but haven't found any answers. Has anyone else come across this? Is my sensor fubared? 
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blackhawk Goldmember  1,785 posts Joined Dec 2009 Location: East coast for now More info | Mar 13, 2010 23:56 | #2 What settings and type of lighting? You got to know when to hold 'em, know when to fold 'em
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FlyingPhotog Cream of the "Prop"  57,560 posts Likes: 178 Joined May 2007 Location: Probably Chasing Aircraft More info | Mar 13, 2010 23:57 | #3 Cactus Trigger transmitter on top or other nearby source of RF? Jay
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Mar 13, 2010 23:59 | #4 yep...cheapie flash triggers? eeeksNYC (my blog
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numbersix fully entitled to be jealous  8,964 posts Likes: 109 Joined May 2007 Location: SF Bay Area More info | Mar 14, 2010 00:02 | #5 Yep. That herringbone pattern is the signature of RFI (radio frequency interference). "Be seeing you."
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FlyingPhotog Cream of the "Prop" 57,560 posts Likes: 178 Joined May 2007 Location: Probably Chasing Aircraft More info | Mar 14, 2010 00:04 | #6 number six wrote in post #9792307  Yep. That herringbone pattern is the signature of RFI (radio frequency interference). Funny, this problem seems to come up almost always with a 5D... -js Happened with mine quite often whenever I took it with me to broadcast compounds and got too close to uplink trucks. Kind of makes me wonder what all that energy is doing to my soft tissues as well. Jay
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themadman Cream of the Crop  18,871 posts Likes: 14 Joined Nov 2009 Location: Northern California More info | Mar 14, 2010 00:10 | #7 Thats usually caused by some kind of wireless flash triggering. The rf 602 triggers don't seem to do it for me tho =) Will | WilliamLiuPhotography.com
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aebrown Maybe the next victim  1,285 posts Joined May 2008 Location: Portland, Oregon More info | Mar 14, 2010 00:10 | #8 What?! -Aaron Brown
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numbersix fully entitled to be jealous 8,964 posts Likes: 109 Joined May 2007 Location: SF Bay Area More info | Mar 14, 2010 00:11 | #9 FlyingPhotog wrote in post #9792313 Happened with mine quite often whenever I took it with me to broadcast compounds and got too close to uplink trucks. Kind of makes me wonder what all that energy is doing to my soft tissues as well.  Heh. As you know, low frequency RFI has no impact on our bodies other than heating. By "low frequency" I mean anything that we are currently using for communications. "Be seeing you."
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blackhawk Goldmember 1,785 posts Joined Dec 2009 Location: East coast for now More info | Mar 14, 2010 00:12 | #10 Interesting. Thanks for the heads up. May have to do with the thick ribbon cables on the main PCB making a nice antenna.  HOSTED PHOTO please log in to view hosted photos in full size. You got to know when to hold 'em, know when to fold 'em
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numbersix fully entitled to be jealous 8,964 posts Likes: 109 Joined May 2007 Location: SF Bay Area More info | Mar 14, 2010 00:13 | #11 aebrown wrote in post #9792347 What?! Ummm, can you expand on that question? "Be seeing you."
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themadman Cream of the Crop 18,871 posts Likes: 14 Joined Nov 2009 Location: Northern California More info | Mar 14, 2010 00:13 | #12 number six wrote in post #9792349 Heh. As you know, low frequency RFI has no impact on our bodies other than heating. By "low frequency" I mean anything that we are currently using for communications. Way back in '63 or '64 I worked with a guy who had just gotten out of the US Air Force. He had worked on radar and said the guys would go up into the radome when it was really cold outside (in Alaska) for shelter. It was really nice when the beam swept past and warmed him up. (Not kidding.) Heating is exactly what our microwave ovens do. It's non-ionizing radiation which is benign. Unlike X-rays or gamma rays. You know that, but I thought I'd mention it for those who don't know the difference... -js He was waved... wow... Will | WilliamLiuPhotography.com
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thanks guys, removing the ebay flash trigger did indeed work
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numbersix fully entitled to be jealous 8,964 posts Likes: 109 Joined May 2007 Location: SF Bay Area More info | Mar 14, 2010 00:18 | #14 edu99 wrote in post #9792373 thanks guys, removing the ebay flash trigger did indeed work  odd ... could have sworn i've used it before on the 5d before without problems. is there any way to prevent it from happening? I don't really have any money to afford pocket wizards or something similar for my flashes.I've never had the problem since I don't use wireless triggers. Others have reported success by changing the channel - can you do that? "Be seeing you."
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FlyingPhotog Cream of the "Prop" 57,560 posts Likes: 178 Joined May 2007 Location: Probably Chasing Aircraft More info | Mar 14, 2010 00:20 | #15 edu99 wrote in post #9792373 thanks guys, removing the ebay flash trigger did indeed work odd ... could have sworn i've used it before on the 5d before without problems. is there any way to prevent it from happening? I don't really have any money to afford pocket wizards or something similar for my flashes.Didn't Cactus make "shields" of some kind for their Tx? Jay
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