That greenish tint looks awful and I'd suggest you test skin tones to see if you can normalize them at all – they might look like corpses or like pigs …

No, totally depends on your scene's lighting.

i think more testing and support should be done by others as well. Vitality should know better how the gh1/2 work internaly with its colors. Maybe some coments from him or other expert could be of grate impact for this proyect. I find it interesting and quiet cheap correcting alternative. Keep on the good work.

All silicon sensors have a native white around 5.000 Kelvin. Of course, the manufacturer might choose to balance their Bayer pattern filters differently without telling us. That said, I don't see too much sense in weakening the other channels in favor of the noisier ones in most cases – after all, you can never increase light by a filter. Only exception: if you can see that green is blowing out much earlier by looking at test footage with a waveform application with separate display, you could counter-filter to expose the footage higher to reduce noise in the other channels. If most of your noise is in the blue channel (like shooting low-light under very warm lighten like fire/candles or household bulbs) you could apply a mild CTB. Or you can noise-flter blue stronger than the rest, since the human eye doesn't resolve blue very well, so the visual sharpness won't be affected that much.

@bitcrusher I definitely think any color filter in front of the lens could have benefits depending on the situation, lighting, etc...

I PM'd eyepatchentertainment if he had any info or experience with this. He said he didn't but he also didn't know about adding that much extra color but....

"What I do believe in is leaving the white balance of the camera at its native WB and then filtering the incoming light to that temperature. On CCD cameras (F900 - DVX100) that brought a noticeable increase in Dynamic Range. "

Now....anybody know the native white balance of the GH1/2s? Would doing something similar work on these cams and is this purple filtering a form of that?

@terry2 no idea. I've never seen any videos talking about pre-filtering your footage. It's all grading after in post.

@Meierhans ...I did try some changing of white balance myself and shooting some 1600 iso footage and it looked bad, FPN same as always. I don't have a filter so I tried taking a purple dry erase maker and coloring a plastic sheet to see how that looked and while the image looked smudgy as hell, it looked a TAD better. Won't be able to do real testing til my filters come in. I think, since the FPN, or other problems are in cam, you need an "out of cam" solution.

Does anybody have any purple or red or blue filters to play around with and see what they can do?

So, what would be the difference between setting a more magenta white balance and put a magenta filter? Also, is magenta or purple?

@terry2 Since the WB is set before encoding to JPEG, it seems likely it is set before encoding AVCHD as well. It would be really odd for it to be the other way around.

@CRFilms I'm trying to understand too, as the opposite of Green is magenta. @Vitaliy In a 4:2:0 environment, can the amount of information for Blue and Red be pushed by software (Hack or patch etc)? Would a filter solution make it worth considering the loss of resolution even with top filters? Wouldn't kill any sense to have top lenses?