Banding on long exposures: lens or camera?

Started Jul 15, 2013 | Discussions thread
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Ncedra
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Banding on long exposures: lens or camera?
Jul 15, 2013

Hello all.

I was at a festvial this weekend and took some long exposures with my OMD in Live Bulb mode at base ISO (200) and with a small and very flimsy tripod. I used the 20mm/1.7 lens, which is known for banding issues at high ISOs. On the computer I saw that the long exposures show quite some banding in the sky, which gets worse when PostProduction is not applied very carefully. The live bulb mode als introduces some noise as I have read.

Do you know if this problem is due to the lens or due to the live bulb mode?

If it is the camera, is there a work around? Maybe less captures during live bulb mode?

It was my first try of long exposures with this camera, so I haven't tried other lenses. The pictures were taken in RAW and I tried to be carefully with PP, so the banding is not too prominent on websized pictures. If you look closely, you can see it in the skies on the left and right side.

Wetterleuchten Festival

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