GH4 GH4 and LOG

Y

yoclay

Veteran
There was a rumor a while back about the GH4 getting LOG. Whatever happened?

I have a project coming up where I will be shooting Sony F3 in SLOG and I would like to get close with the GH4 in 4K.
Any suggestions or profiles I might use?
 
Whatever happened to...the rumor? It's still there, and it's still a rumor :)

Log would be nice on the GH4, but it doesn't look like it's coming in next firmware update coming in October. If log will be added, it likely won't be for some time after that update.
 
I wonder why log in an 8-bit camera would be nice? Crushing everything into the middle half of a limited spectrum, then having to expand it back out for contrast sounds like a noisey, band-filled experience. No?
 
wwjd said:
I wonder why log in an 8-bit camera would be nice? Crushing everything into the middle half of a limited spectrum, then having to expand it back out for contrast sounds like a noisey, band-filled experience. No?
Click to expand...

No dude. I can't wait for log on the gh4. Technicolor's Cinestyle on the 60d brought that camera to a whole different level if you have or are a real colorist.

Check out my last 60d and t2i with cinestyle music video.
https://www.youtube.com/watch?v=3gElP-2l57U
 
I only used Cinestyle on my T3i also to help its limited DR, but not sure if the gh4 sensor needs that much help.
 
wwjd said:
I only used Cinestyle on my T3i also to help its limited DR, but not sure if the gh4 sensor needs that much help.
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Try to grade Cinestyle material from this camera, then material from GH4... So much easier...
Grading CinelikeD is really a pain in the a... grading natural style material even more, don't know why. Skintones are really hard to correct.
 
This is what GH4 really needs: proper colour science. I see no reason why, with proper cs/log profile, that camera could not become at least as good as BMPCC (or BMCC4K). This is essential as at the moment this one thing really puts me off :/
 
wwjd said:
I wonder why log in an 8-bit camera would be nice? Crushing everything into the middle half of a limited spectrum, then having to expand it back out for contrast sounds like a noisey, band-filled experience. No?
Click to expand...

For internal recording, yes. But for those folks shooting 10bit 4:2:2 to an external recorder, it would make a lot more sense.
 
Grading Cinelink D is only a problem when you don't nail your white balance and your exposure. If you get White balance correct then grading awesome with Cinelike D. I don't mess with contrast on Cinelike D though, that can screw with skin tones. Leave em set to 0.
 
nobbystylus said:
Grading Cinelink D is only a problem when you don't nail your white balance and your exposure. If you get White balance correct then grading awesome with Cinelike D. I don't mess with contrast on Cinelike D though, that can screw with skin tones. Leave em set to 0.
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And even then it's still so much easier working with log footage. Came from BMCC/RED to the GH4. The tone curve seems to be really messed up, skin tones are really hard to fix. Most videos on youtube/vimeo have really ugly skin tones with this camera.
 
I did a lot of chart and skin tone testing, and came to the conclusion that Cine-D is fundamentally busted when it comes to color reproduction. The best profile I could build started from Natural. Push the tint +2, and you've got pretty accurate colors across the spectrum.
 
Here's my "flat" setting for grading:
Natural
Contrast -5
Sharpness -5
Noise Reduction 0
Tint +2
Shadows/Highlights +2/-2
Range 0-255

It's nowhere near a Log profile, but I do think that these settings capture the most information, the most accurately, possible from the GH4.
 
wwjd said:
I wonder why log in an 8-bit camera would be nice? Crushing everything into the middle half of a limited spectrum, then having to expand it back out for contrast sounds like a noisey, band-filled experience. No?
Click to expand...

Ive been using c-log on c300's for a while now. That's only 50mbit/s and is also 8bit and is really good.
 
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