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Intriguing Green Streak on Long Exposure

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Intriguing Green Streak on Long Exposure

Postby alpinemike » Sat Jun 28, 2014 1:11 pm

Just got back from my 10 day adventure in Sequoia and Kings Canyon National Parks. I took a photo of East Lake and left the shutter open on my digital camera which is a Nikon D7000 for about 2 hours. I'm assuming this green streak is the sensor not liking to be active for that long but I'm not sure. Anyone have this problem? I'm assuming that you just can't push a digital camera to have it's sensor open for more than about an hour or so. I've done 30 minutes in the past and it was perfectly fine.
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Re: Intriguing Green Streak on Long Exposure

Postby cmon4day » Mon Jun 30, 2014 9:07 am

Extra-terrestrial
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Re: Intriguing Green Streak on Long Exposure

Postby oldranger » Mon Jun 30, 2014 10:00 am

Southern lights?

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Re: Intriguing Green Streak on Long Exposure

Postby alpinemike » Mon Jun 30, 2014 10:40 am

I don't think it's Southern Lights.. They wouldn't look pixelated and it appears as though there's a green cast over the entire sensor. I've heard that digital camera sensors are more sensitive to green in the first place. I think it may be a sensor issue... I don't think digital camera sensors are supposed to open that long.
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Re: Intriguing Green Streak on Long Exposure

Postby copeg » Tue Jul 01, 2014 11:03 am

I presume no light from camp (headlamps, etc...) were on during the exposure? Does the camera have any light whatsoever on it while exposing? At least one of my Canon SLR's (could be on the others but don't have them in front of me to test) has a red light on the back which illuminates while the shutter is down. During long exposures this would affect the exposure as the light would end up exposing one corner/side of the image. My solution, which has worked ever since, was to would wrap a scarf or the like around the camera body to cover up anything that could illuminate the sensor (could be a setting to suppress the light, but I haven't found it)
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Re: Intriguing Green Streak on Long Exposure

Postby Jimr » Thu Jul 03, 2014 1:35 pm

My Canon instructions warn that during live view shooting, long exposures may capture irregular colors. Were you using Nikon's version of live view? You may want to look at your instruction book to see if the same warning is there.
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Re: Intriguing Green Streak on Long Exposure

Postby vitaminC » Fri Jul 11, 2014 9:23 am

I think your sensor is overheating. Try stacking multiple exposures instead...
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