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07-06-2011, 10:25 PM   #1
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Problem with 400 ISO

Dears

I have tried some nocturnal images, and a strange problem appear when i shot at 400 ISO, A very noticeable green band. I attach 2 photos, photo 1 with 400 ISO, 6 seconds and the green bands, and 800 ISO, 6 seconds. All photos i tried with 400 ISO ans some seconds has this strange green bands, but at other iso there is no presence of the bands. I am very dissapointed with this results, mi camera have only a week in my hands and i need 400 ISO and long exposures for astrophotography.

Regards
Victor

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07-06-2011, 11:28 PM   #2
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Did they come out of camera this way?
Have you looked in RAW/DNG to see if the issue is still there?
07-07-2011, 04:19 PM   #3
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That looks like a PP software problem
07-07-2011, 07:08 PM   #4
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The problem is seen at the screen of the camera. It`s too appear when i shot RAW, dng or pef.
The problem appear in all ISO between 400 and 800 ISO (including 400) and in all modes, except bulb
I have tried several settings, but the problem dont dissapear!! :-(


Last edited by cometavictor; 07-07-2011 at 08:02 PM.
07-07-2011, 08:00 PM   #5
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Does it appear at all shutter speeds or just the extended one(1s or more)?
Would it be possible to upload a RAW file which contains this artifact in it for a closer look?
07-07-2011, 10:58 PM   #6
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THEY are trying to contact you.
07-08-2011, 06:01 PM   #7
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JohnBee :

Its appear at all shutter speeds, only at 400 ISO, except in TAv mode, in which it appear at 500 and 640 ISO too. I will upload a RAW file soon
07-09-2011, 12:11 AM   #8
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QuoteOriginally posted by Quicksand Quote
THEY are trying to contact you.
That's what I thought too when I saw this. It's very X-files!

07-09-2011, 10:34 PM   #9
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Happy, Happy, very happy!!!!!!

I solved the problem with the option "Dynamic Range Setting", Highlight correction set to on!!!

Regards!!!
07-10-2011, 09:04 PM   #10
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Sounds like it was more of a problem with Jpegs than RAW. Since Highlight corrections only effects Jpegs (as far as I understand it).
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