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    Senior Member visceralpsyche's Avatar
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    Quote Originally Posted by DrDave View Post
    Can someone clarify on the G7/GH4 whether the contrast in the cam should be 0 or -5? I'm seeing conflicting info. Tx.
    It was originally -5 up until the release of v201 of the GH4/G7 LUT; from then on it was recommended to set it to 0. Current version v323 of the LUT uses Contrast 0 as its baseline.

    Hope this helps!

    Cheers,

    Paul
    Paul Leeming
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    Senior Member visceralpsyche's Avatar
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    Quote Originally Posted by DrDave View Post
    Re GX85
    This cam has no log, but it does have the grey curve interface--my question is whether you can simulate the log curve manually using the grey point and/or contrast/sat settings.
    You wouldn't want to - compressing the range to simulate log is what causes all the banding and chroma issues in 8 bit.

    Cheers,

    Paul
    Paul Leeming
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    Quote Originally Posted by visceralpsyche View Post
    It was originally -5 up until the release of v201 of the GH4/G7 LUT; from then on it was recommended to set it to 0. Current version v323 of the LUT uses Contrast 0 as its baseline.

    Hope this helps!

    Cheers,

    Paul
    Thanks, I was confused by that as it is listed as -5 in some of the earlier posts but I figured 0 was right since considering the alternative. I'm very pleased with the image but I did need to rotate the hue wheel to match the colors in my "Normal" setting on the G7--is this a difference between normal and Standard, or is there a color shift between the GH4 and the G7? Image is very good overall after the bump, so no worries.
    HD Video: GH5, G85, ax700
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    Senior Member visceralpsyche's Avatar
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    Quote Originally Posted by DrDave View Post
    Thanks, I was confused by that as it is listed as -5 in some of the earlier posts but I figured 0 was right since considering the alternative. I'm very pleased with the image but I did need to rotate the hue wheel to match the colors in my "Normal" setting on the G7--is this a difference between normal and Standard, or is there a color shift between the GH4 and the G7? Image is very good overall after the bump, so no worries.
    The GH4 and G7 use the same LUT, so you should set both up with the Cine-D profile and associated settings. Then they should match pretty much perfectly

    Cheers,

    Paul
    Paul Leeming
    Writer/Director/Cinematographer/Actor
    Visceral Psyche Films
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    Video I made with Leeming LUT v126 (just the one I like personally the best. Though not as accurate, I like starting from the image this one gives me better) and the Skin Pop Quickie as the main CC. This was shot and edited in a week. I would have loved to spend more time on lighting (like... any time on lighting) as I know it's a mixed bag. Also, a couple of shots I forgot to recorrect for the LUT for the web, so the contrast is way off. Anyway, enough lamenting the things I wanted to do differently. I hope you like it!

    Last edited by blazer003; 09-01-2016 at 02:36 PM.


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    Quote Originally Posted by visceralpsyche View Post
    Set your zebras to 105%, and follow my ETTR shooting guide, and you'll be well set to shoot with maximum dynamic range

    Hope this helps!

    Cheers,

    Paul
    Thanks Paul. Isn't Zebras at 105% for Cinelike or standard Rec 709? These were shot in V-Log, and I'm shooting a similar situation tomorrow night. If maximum exposure is now 81 IRE and 91 IRE white now 61, should I just set my zebras to 60 and lower the exposure ij post from there? If Rec 709 caucasian skin tines are normally 70 IRE, should I set my zebras to 50% (GH4 lowest)? Ideally I'd experiment beforehand, but I'm finding it hard to replicate the situation.


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    Senior Member visceralpsyche's Avatar
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    Quote Originally Posted by capitalphotog View Post
    Thanks Paul. Isn't Zebras at 105% for Cinelike or standard Rec 709? These were shot in V-Log, and I'm shooting a similar situation tomorrow night. If maximum exposure is now 81 IRE and 91 IRE white now 61, should I just set my zebras to 60 and lower the exposure ij post from there? If Rec 709 caucasian skin tines are normally 70 IRE, should I set my zebras to 50% (GH4 lowest)? Ideally I'd experiment beforehand, but I'm finding it hard to replicate the situation.
    For V-Log, set 75% zebras since the maximum is 79% IRE in log (80% is clipped). Then ETTR using the zebras as your clipping point as per normal

    Cheers,

    Paul
    Paul Leeming
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    Visceral Psyche Films
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    For all you G7 users, on my three cameras the histogram is not accurate unless live preview is turned on--it seems to just read the screen, which of course is always adjusted even if the image will be black. I was just using the exposure scale until I figured this out, but it is nice to be able to use the histogram for ETTR. I don't know if this affects all G7s.
    HD Video: GH5, G85, ax700
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    Paul, when the G85 comes out here shortly, will you be able to create a LUT for it? I'm curious to see how close it matches the G7 & GH4 Lut.


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    the g85 looks to be an interesting step down from the upcoming gh5.

    i'm looking forward to seeing some footage.

    be well.

    rob
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    it takes Smalltalk to reveal the color

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