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GF3 Stable Settings topic
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  • KeithLommelKeithLommel

    @APXmusic @kavadni : Unless my understanding is incorrect, "M" is for manual control of still photos only. Once you start recording video, the camera reverts to picking aperture, shutter speed, and ISO by itself. If you've got legacy lenses, you can regain control of the aperture (as it is set manually), and the "Flicker Reduction" function can let you lock the shutter speed to 50, 60, 100, or 120, but as of yet there's no way to stop the camera from adjusting ISO automatically. VK has mentioned before that he is working on manual controls for GF2 and GF3, but I've seen no promised implementation date.

  • APXmusicAPXmusic

    @kavadni You kind of do have manual control on the GF3. You have to set the camera to "M"

  • kavadnikavadni

    @stonebat. Does the hack give manual control with the GF3?

  • APXmusicAPXmusic

    @stonebat Thank you for your help just the same! I will post some results when I test it out tomorrow.

  • stoneystoney

    Natural and Portrait photo styles seem the most flat on GF3 for color grading. They have about same DR, too.

  • stoneystoney

    @apxmusic I don't know for sure. One thing I check is ave I-frame above 500KB. But that doesn't guarantee image quality.

    I just like @pvdog's setting. Gotta move on.

  • APXmusicAPXmusic

    So If I am using the 42Mbps setting, I shouldn't be using anything lower than GOP6?

    Also, I guess I didn't form my earlier question properly. Where do you enable the 30p?

  • stoneystoney

    I think the AQ settings are designed with stock GOP in mind. 32Mbps GOP6 or 42Mbps GOP3 would give ave I-frame below 300KB. Improving B and P frames based on such I-frame wouldn't make much difference.

    Roughly 3x bit rate (i.e. 48Mbps) for GOP6, 4.5x (72Mbps) for GOP3, 7x (112Mbps) for GOP1 would match to the ave size of I-frames from 2x (32Mbps) AQ4 stock-GOP settings on GF2 and GF3.

  • TomasoTomaso

    @APXmusic Have you tried End User Settings 1080 = 32 and 720 = 24? You can also try to set AQ to 4 or 3. This gives you 2x bitrate compared to stock. You can also set all GOP to 6. This works for PAL 1080/720. More advansed settings can probably come up to at least 3x stock bitrate.

    Also se my earlier post where I tested Balazer Cake 2.0 modified with all GOP = 3. This gave me a bitrate of 42 and very god looking video. I think you will be able to find opther medum bitrate settings around 40-60 mbits that also work as towi's 24p25p-NINE HQ-Matrix 66M44M32

  • APXmusicAPXmusic

    Anyone have any success with 108030p and a high stable bitrate?

  • TomasoTomaso

    I have added a GOP 6 with 32/24 mbits to my initial post.

  • stoneystoney

    @pvdog's 48Mbps GOP6 setting is stable. I like it. Try it out on GF3. It gave 672KB ave I-frame.

    http://www.personal-view.com/talks/discussion/comment/51297#Comment_51297

  • stoneystoney

    I forgot to say. Thank you Vitaliy!!!

  • stoneystoney

    I like @pvdog's GOP6 idea at 48Mbps for GF2 that is 3x base bitrate. That gives roughly 600KB ave I-frame. Seems in the ballpark. http://personal-view.com/talks/discussion/2681/another-gf2-stable-settings

    Hopefully he maintains and improves his settings. Otherwise I'm gonna use the 32Mbps AQ4 stock-gop settings http://personal-view.com/talks/discussion/comment/42044#Comment_42044

  • stoneystoney

    Suppose we get mud from ave I-frame size 200KB out of stock GF3. Would ave I-frame around 300KB from hacked GF3 solve the issue?

  • mattherematthere

    The GF3 is producing some very nice footage with Sanity v4 and stable so far with Sage's Death Chart.

    Thank you VK! Thank you Ralph_B :)

    Sanity 4.png
    1920 x 1080 - 650K
    GF3 Sanity v4.png
    1920 x 1080 - 2M
  • stoneystoney

    I'm happy with the 32Mbps AQ4 default-GOP settings. It gave ave I-frame size around 700Kb. You'd need to get around 75Mbps bitrate to get such large ave I-frame from GOP3 settings.

  • TomasoTomaso

    I also have tested Balazer Cake 2.0 modified with all GOP = 3. This gave a so far stable setting at 42mbits:

    3.65_e_Balazer_Cake_V2.0_GOP_All3 FSH_Frames.PNG
    746 x 398 - 51K
  • stoneystoney

    48 would be too high for AQ4. 32Mbps and AQ4 worked.

  • TomasoTomaso

    @stonebat In beta I got 38/30 to work. I also tested 48/36 and it worked, but I am not sure if it went into falback or not. My subject might not challange the codec. Today is a gray day, yesterday was suny with high contrast. Yesterday AQ4 crashed with fast panning/tilting and 48/36.

  • stoneystoney

    2x bitrate is good. Thanks. Try AQ4, too. At least it didn't crash.

  • TomasoTomaso

    Bellow you see StreamParser output for stock settings:

    GF3 Stock FSH_Frames.PNG
    746 x 398 - 145K
    GF3 Stock SH_Frames.PNG
    746 x 426 - 146K
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