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    #11
    Senior Member SJX's Avatar
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    Quote Originally Posted by Grug View Post
    Converting from what? HDCAM-SR? Or uncompressed DPX?
    Don't know exactly yet but some form of 12 bit.


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    #12
    Senior Member SJX's Avatar
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    Quote Originally Posted by Cary Knoop View Post
    It's not the wrong word, that what intermediate is, you use it during the editing and grading process and then render it to a deliverable codec.

    You got three stages:

    1. Acquisition codec - what the camera records
    2. Intermediate codec - what is used during the post-production process
    3. Deliverable codec - the codec of the final product
    OK. Thought intermediate mean only editing codec but then in resolve or other you use edl to grade original files. I want to grade the cineform or whatever other I end up choosing. So need to be good quality and not less quality than 12 bit from F35.


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    #13
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    Then Cineform 12-bit 444 Film Scan is worthy of consideration and very good to work with.

    Chris Young


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    #14
    Senior Member SJX's Avatar
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    OK so will give it a try. Thought of dnxhd but then heard cineform is better and better quality too.


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    #15
    Senior Member Cary Knoop's Avatar
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    Quote Originally Posted by SJX View Post
    cineform is better and better quality too.
    ProRes, DNx and Cineform compress pretty much equally well given the same bitrate and bit-depth.

    Wavelet compression (only Cineform uses this) has some advantages, but the actual quality improvement is very minimal compared to DCT based compression.


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    #16
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    And truly cross platform which ProRes still isn't in the PC world. Cineform can be rendered out as .MOV or .AVI. I find it generally requires about 20% less CPU horsepower on the systems I'm working on which generally helps with smoothness of playback especially when you are working with the biggest 12-bit 444 Film Scan files.

    Chris Young


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    #17
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    Cineform is ~2.3x more efficient than ProRes at similar visual quality levels: http://www.dvxuser.com/V6/showthread...post1986787487

    I've tested this myself (including doing image deltas vs. the originals). Regardless of the quality settings, the Cineform and Wavelet image deltas were substantially different (makes sense: DCT in blocks vs. DWT on entire image). To the eye, both are visually lossless at the ProRes equivalent level and higher. It's easy to test: if you can't see a quality difference with the smaller files, you can save a lot of disk space.


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    #18
    Senior Member SJX's Avatar
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    Cineform being so good and maybe better is pity it is not more used. I think gopro is the reason. Now I think it is even open source? Is still being developed?


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    #19
    Senior Member Cary Knoop's Avatar
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    Quote Originally Posted by SJX View Post
    Cineform being so good and maybe better is pity it is not more used.
    Without starting another discussion on this let me just say that not everybody agrees with the claim that Cineform is ~2.3x more efficient than ProRes. ;)


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    #20
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    Quote Originally Posted by SJX View Post
    Cineform being so good and maybe better is pity it is not more used. I think gopro is the reason. Now I think it is even open source? Is still being developed?
    https://github.com/gopro/cineform-sdk


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