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AaronChicago

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Posts posted by AaronChicago

  1. Question for all of you that have been using HLG. What is the input color space and output color space? When I'm looking at an HLG file in Resolve it seem's pretty decent while working in HLG color timeline, but there's no option for HLG output. Rec2020, Rec2100 looks bad. The colors are all shifted. Output to Rec709 looks good but I'm not seeing any  more DR on that output than VLogL.

    Update: I found that using Rec2100 as the input and output is key. It's hard to see any difference on my Rec709 monitor but I'm getting a decklink hooked up to view HDR on the Atomos Inferno.

  2.  

    50 minutes ago, PannySVHS said:

    @AaronChicago Thank you for posting! How did you come up with all the settings?

    Juan Melaras introduced this technique for BMD Film and Arri Log C. It works the same with V Log.

    I was able to do a quick comparison with the GH5 before I sold it and the highlight rolloff is definitely better with the GH5s.

    Here's a quick highlight test in snow with the GH5S. No LUTS used. VLog color managed to Rec709 and a slight curve adjustment for contrast.

    Settings:

    VLog L
    C4K 10 bit All-I

    Speedbooster Ultra

    Shutter 180
    ISO 400
    Leica R 60mm @ F4
    Tiffen 0.9 ND

  3. Been playing around with the GH5s and hope to have some samples up soon. I will say one thing about VLogL. The vast majority of people aren't properly converting V Log into a proper Rec709 color space. Using a LUT in Premiere just doesn't fully cut it. If you go to Resolve and set your input gamma to V Gamut, and output to Rec709 Gamma 2.4, luminance mapping to 500 nits, and saturation mapping ON (min 0.9, max 1.0) you get a full range of DR to manipulate contrast/saturation in Rec709.

  4. They are different for sure, but that is with no secondary adjustments. I naturally would bring down the sat of green and shift the hue. Skin tone could use a slight shift of green hue. This isn't a knock at all on your Alexa LUT b/c I love it. More of a compliment to the Varicam LUT which I threw in the trash last year after getting weird macroblocking with the GH4.

  5. So I've been doing a ton of testing with VLog L and various conversions, techniques, profiles, etc. I ended up doing a head to head test with the Alexa Soft (Daylight) Rec 709 vs VLogL to V709_100 (Panasonic's default VLog conversion). Using ONLY curves and MAIN saturation slider they look extremely similar. I did no modifications to color channels.

    Alexa Soft 709:

    https://imgur.com/a/Uhf5Z

    Varicam conversion LUT:

    https://imgur.com/a/kqaDf

    Alexa.jpg

    Varicam.jpg

  6. Realistic next steps would be 6K (maybe 8K) up to 30fps. Internal ND. 4K 120fps. They can't really cannibalize their cinema line (EVA1, VariCam) so I highly doubt they're going to add a sensor that is better than those 2. Unless by that time their cinema cameras have all new sensors.

  7. 24 minutes ago, RobertoSF said:

    The GH5s can shoot multiple aspect ratios, namely the anamorphic friendly 4:3. And, apparently, the anamorphic video mode lets users record “squeezed” footage, then desqueezes it in the display, so the footage can be viewed in a more cinemascope-like aspect ratio.

    This was a feature on the GH5 as well. What would be cool is if it could preview and desqueeze the actual file.

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