GH2 Gh2 color went wrong

flinty

Veteran
Filming a village fete i thought the green dancers costumes did not look the right color no matter which setting of wb was used,it was impossible to see in the lcd but i had no option but to carry on and hope the viewfinder was telling me wrong,but it was not the costume color is way way out from what they should be,but in the photos i took the costumes look great perfect color,is there certain colors the GH2 can not get correct in video but can in stills.
 
after testing all the film modes i just think the GH2 can not handle artificial greens too well,but on stills it can,strange.
 
Could be the differences in color spaces. I have no idea how you have your camera set up, but it's not uncommon for stills to be captured in the AdobeRGB color space, while HD video is often captured in the Rec.709 color space. The Rec.709 color space is closer to SRGB than it is to AdobeRGB, if memory serves. If it doesn't (often the case as I get older) I hope someone will correct me. But the differences in gamut between the color spaces might be enough to explain what you are seeing. Or it could be something else entirely ;-).
 
Could be the differences in color spaces. I have no idea how you have your camera set up, but it's not uncommon for stills to be captured in the AdobeRGB color space, while HD video is often captured in the Rec.709 color space. The Rec.709 color space is closer to SRGB than it is to AdobeRGB, if memory serves. If it doesn't (often the case as I get older) I hope someone will correct me. But the differences in gamut between the color spaces might be enough to explain what you are seeing. Or it could be something else entirely ;-).

I think you are correct. I have used video cameras since the VHS days. Even the real high end cameras would have trouble capturing accurate colors. I remember doing a 35MM film shoot and at the same time we were rolling BetaSP for behind the scenes. When we transferred the 35MM to tape we had control over everything and could tweak the colors the way they looked. The 8-bit video was tough to get greens & reds to look "good". I remember getting a DVX-100 and was thrilled I could fudge the hue a few notches to get away from those cyan tinted reds.

I would always try to white balance the camera and the GH2 does this better than most DSLR's. I would not try to tweak the white balance (unless you are going for a special effect) using the LCD. Once you start going
off the farm so to speak it gets much more difficult to process in post. Those greens could easily be fixed in post using secondary color correction in After Effects & Color Finesse.
 
Thanks a lot for the replys,i did try all the presets and mwb plus all the other colors seem fine so i dont think there is much i can do in camera,natural IE countyside greens look good mostly when i film,unfortuantly i know little about post correction and would not have a clue how to just alter the green costumes in individual clips.
 
Then it's time for you to start reading the books written by Steve Hullfish, these books (that come with DVDs with material to practice on) explain the technique of color correction very well and it covers all known color correction tools and one of the chapters is about "selective color correction", including selecting a part of your frame and within that frame selecting a color, then all the adjusting you do only applies on that part of your image without touching the rest. It's easier than you think, the most important thing is your eyes and there seems nothing wrong with that. What hard- and software are you using for your post production/editing?

And stills taken for the web should be in sRGB color space, I think the GH2 is set like that by default, I wouldn't know what color space the video mode is in. It's interesting and I will do some shooting of both stills and video of subjects in the coming weeks to see if there are any differences.
 
Not sure what you're worrying about here - skin tones look good, as do the natural foliage. You look like you've got your colour balance spot on.

(edit)
oops - these are the stills you took, and not frame grabs from the footage?
 
Not sure what you're worrying about here - skin tones look good, as do the natural foliage. You look like you've got your colour balance spot on.

(edit)
oops - these are the stills you took, and not frame grabs from the footage?

Yes the stills are fine the prints look correct as well but video played on any tv any green exept natural countyside green is way off the worst i have ever had known on this site .

http://www.youtube.com/watch?v=za9FVGX_f5I

the brass band members jackets were far from accurate yet on a friends with a very cheap camcorder the greens were spot on.


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Then it's time for you to start reading the books written by Steve Hullfish, these books (that come with DVDs with material to practice on) explain the technique of color correction very well and it covers all known color correction tools and one of the chapters is about "selective color correction", including selecting a part of your frame and within that frame selecting a color, then all the adjusting you do only applies on that part of your image without touching the rest. It's easier than you think, the most important thing is your eyes and there seems nothing wrong with that. What hard- and software are you using for your post production/editing?

And stills taken for the web should be in sRGB color space, I think the GH2 is set like that by default, I wouldn't know what color space the video mode is in. It's interesting and I will do some shooting of both stills and video of subjects in the coming weeks to see if there are any differences.

If the GH2 could record the greens i am refering to like in the films shown as good as a £200 camcorder selective color corection would not ne needed,i dont take stills for the web all still prints and on any monitor have correct artificial greens.
This is the only downer i have found on my GH2 of any real note.
 
To me the colors in your clips look oversaturated and maybe some colors are clipping. Look at the yellow and blue surfaces, there are no details. In what mode are you shooting? Vibrant colors, neutral colors, did you change the color slider in the GH2?
 
To me the colors in your clips look oversaturated and maybe some colors are clipping. Look at the yellow and blue surfaces, there are no details. In what mode are you shooting? Vibrant colors, neutral colors, did you change the color slider in the GH2?

RienO i have said i have tried all the modes to no avail but the film in question as i use mostly was in smooth,on my TVs the pioneer included the color looks ok exept for the green,certainly smooth is the mode i have found best since getting used to the camera
http://vimeo.com/user467671/videos/page:1/sort:newest the first 12 on here are GH2,Its only since i realised about the non wild greens that i have concern.
 
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