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Old Sep 10, 2007, 1:35 PM   #1
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Over Labor Day weekend I tried to shoot some lightning and these green spots kept showing up on long exposures. Has anybody got an idea what causes this?



Thanks; Mike
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Old Sep 10, 2007, 1:36 PM   #2
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Here's another lightened up.
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Old Sep 10, 2007, 1:50 PM   #3
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Nice shot, but can you point out the green spots you're takling about? And do they show up in exactly the same place in other shots? And with the same lens?
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Old Sep 10, 2007, 1:58 PM   #4
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The green spot is directly above the brightest lights on the horizen, about 3/4 of the way up in the photo. It's big
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Old Sep 10, 2007, 2:42 PM   #5
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Oh yeah! Wow! I thought that was a reflection in my monitor.

Does it show up in any other shots? And does it always show up in the same place?
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Old Sep 10, 2007, 2:57 PM   #6
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I took about 25-30 shots and they all had the spot in them, same area in shot. I've taken long exposures in the past and they were fine. Using the same lens the next day (daylight) everything worked fint too.
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Old Sep 10, 2007, 3:13 PM   #7
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The green is way too subtle to show up in daylight, so I wouldn't expect to see it there.

My guess is a fingerprint on the lens or image sensor, but I think you should wait for a second opinion before you do anything drastic.
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Old Sep 10, 2007, 3:27 PM   #8
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Thanks TCav. Good suggestion I'm wondering if somethings going on with the pixels.

Hopefully some has seen this before and can reply.
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Old Sep 10, 2007, 4:01 PM   #9
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are these through a car window..filters ect ect?
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Old Sep 10, 2007, 5:34 PM   #10
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MINOLTANUT are these through a car window..filters ect ect?

No.
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