GH2 LCD Color Gamma Shift : Try this

Kholi said:
Excellent. That green shift is kind of annoying innit? I'm almost positive it's the noise, wish there was a way to kill that too. But I'll take this, as it's clearly gonna help exposing this thing properly.
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I'm sure you already have several ways of correcting the green tint in post. (I know you'd rather kill it here while you capture it....) Anywho, I have enjoyed using "ColorGHear" for the "green kill" feature that it has. Drag, drop, done. "Minus green" is another in his collection....nice stuff anyway.... :)
 
HHL said:
I'm sure you already have several ways of correcting the green tint in post. (I know you'd rather kill it here while you capture it....) Anywho, I have enjoyed using "ColorGHear" for the "green kill" feature that it has. Drag, drop, done. "Minus green" is another in his collection....nice stuff anyway.... :)
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Oh yeah for sure, it's pretty easy to get rid of, just would be cool to not have to deal with it at all y'know ?Oh well.
 
Couple of users and I have found that Ipowell's newest Flowmotion patch really minimizes the color shift. I mean really. Best I've seen yet. Gamma shift is still there but color wise I'm happy!
 
ed_lee83 said:
Couple of users and I have found that Ipowell's newest Flowmotion patch really minimizes the color shift. I mean really. Best I've seen yet. Gamma shift is still there but color wise I'm happy!
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Great to know! Thanks for the tip!
 
worked well for me, but im still seeing the histogram jump a fair amount under certain circumstances :Drogar-Mad(DBG): guess theres not much we can do about that.
 
I just dont' even use the histogram. I tried, but it was a serious failure. AT this point the little exposure meter at the bottom is the best gauge of an overall exposure, and you'll just have to trust your eyes on what's going away and what's not.

At least this way you aren't being tricked into using higher ISO's unnecessarily, or thinkin' that you've lost data on either end of the scale when it's obviously there
 
Thanks for posting this. I just tried it on mine and it works very well! The jump is almost imperceptible, and way better than before.
 
It's the noise appearing in the video stream. There's really no way to get rid of it in that case, but it works when you've got light.

The other thing is, even if the shift appears, you can still see just about everything the sensor sees so it doesn't force you to add or subtract light, gain/iso up, etc.
 
You are right about being able to see what the sensor sees, but I fail to understand the difference between before and after hitting record. Everything goes dramatically darker, and in low light shifts to green. The thing about this problem is that it is truly reflective of what is being recorded. The footage looks exactly like that when viewed afterwards. Image before recording = clean clear, great. After recording, darker and greener. White balancing doesn't affect it, the problem is there no matter what settings are used. But like you said, it only happens in low light situations.

I am curious if this is something inherent to the sensor or if it can be remedied in-cam. Either way, atleast we can color correct it in post, its just a pain!
 
HotConductor said:
You are right about being able to see what the sensor sees, but I fail to understand the difference between before and after hitting record. Everything goes dramatically darker, and in low light shifts to green. The thing about this problem is that it is truly reflective of what is being recorded. The footage looks exactly like that when viewed afterwards. Image before recording = clean clear, great. After recording, darker and greener. White balancing doesn't affect it, the problem is there no matter what settings are used. But like you said, it only happens in low light situations.
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I'm not sure if you're talking about what I suggested at the beginning of the thread or not, but if you've dialed the EVF and LCD, then before and after record button in decently lit situations should be extremely close. IN darker situations, it's showing you exactly what you will record: a noisy image because there isn't enough light.

If you're concerned about the green tint, set all of your white balance settings to +3 magenta, or notch them down three ways. That way you never have to color correct green out of the image.

For whatever reason, it just has a strange green bias, can't tell ya why, but forcing it to magenta in the white balance fixed it for me.
 
Kholi;1986131604 If you're concerned about the green tint said:
I posted this video a while back. For this test I used the 14-140 Panny and had my white balance set +3 to magenta and +2 to amber.

http://vimeo.com/hatfieldmedia/review/38071090/cb4ff5a762

This only happens in low light and high iso. Adjusting the EVF and LCD is not the issue. The issue is the dramatic change pre/post hitting the record button.

I'm with you on the green bias. Might have something to do with the fact that the camera is less than $1000.
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It was always an issue on my camera, no matter the light, until I adjusted the screen brightness and contrast.

Can't tell ya what to do, though. Sorry.
 
I noticed a green bias on my Panasonic HVX 200 (back when I had one) and on my Panasonic BT-GH1700W monitor. Maybe Panasonic just finds it easy, being green.
 
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