fp Horizontal green lines with ISO 6?

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jma60 Regular Member • Posts: 125
fp Horizontal green lines with ISO 6?
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The other day I was in a rush to to get some pictures taken for a presentation and did not have time to setup proper lighting, so I chose to use a long exposure with ISO 6.

I can't show the exact picture I used, but here's an example with similar exposure. showing the green lines

Note that the EXIF states the exposure is 30s, but the total ISO stacked exposure time was around 320s for this particular shot. I got this happening from 50s to 320s total stacked exposure time. However, I could only get exposures on the higher end to repeatably show the green lines, while exposures near 50s were sporadic, which leads me to believe this may be a thermal issue.

I also tried to replicate this with base ISO (100) but could not, probably because the max exposure time is 30s without stacking.

Has anyone experienced similar with their fp or stacked ISO exposures?

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