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D800 sensor purple fringe

agitater

Toronto, CA
4551 posts

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"RE: D800 sensor purple fringe"

agitater Gold Member Donor Ribbon awarded for his very generous support to the Fundraising Campaign 2014 Nikonian since 18th Jan 2007
Fri 05-Jul-13 10:26 PM

>IMO, this is not a WB issue. And I must point out, my D600
>does NOT do this while set to the same ISO and WB and even my
>venerable D200 does a better job at it's max ISO, (I have shot
>this room several times before without issue).

I get what you're saying. But I think that no two camera angles on different nights in the same room are ever the same. If there's a WB problem - which I do see - combined with small, peripheral light sources that are hitting the lens at an odd angle, you get the sort of colour wash you're seeing is different parts of the shot. That's not an unusual problem in a room with so many point sources of light scattered everywhere. Anyhow, the way you shoot the room and the way someone else shoots the room are two very different things. I won't bet real money on it, but I'd guess that if someone had made the exact same shot using a D600, D800 and D200 in that room in the exact same spot at the exact same time using the exact same lens they'd have gotten the same colour haze (um, that is if I'm right about it in the first place). If it's colour haze, that shoots my custom WB recommendation down.

>Back to my point. Look at the shots. The center of the
>images has fine WB. The edges, however, are purpleish, (like
>I say, I think this is sensor amp noise).

I guess it could be sensor amp noise, because such noise tends to appear primarily in the blue channel. But it's nothing like amp noise I've seen before, and a lot more like colour haze induced by indirect light sources. Could be a sensitive lighting situation for the particular lens + body combination. Could be the photographer got himself into haze trouble because of his shooting position. I just don't think it's amp noise.

Then again, that 36mp sensor can be tasked quite heavily in such terrible lighting conditions, especially if it was heating up from high-speed shooting. Might not be a reasonable use of the D800. Then again, I've seen some excellent D800 shots in relatively dim club lighting, but in those shots the main light source on the performer was isolated and there weren't any competing light sources hitting the lens.

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This is a hot, active topic! D800 sensor purple fringe [View all] , dagoldst Gold Member , Fri 05-Jul-13 01:57 PM
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