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    #11
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    Quote Originally Posted by Jarek Zabczynski View Post
    I saw no difference in 200mbs vs 100mbs when I had my PX270s.
    Agree. Seems like I-200 was available on the 270 for B-roll when the A-cam cam could make use of the higher bit-rate like the 5000 model. The 270 has in same brain as the 5000, but in a handycam form with small sensors.

    Grant


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    #12
    Senior Member Jarek Zabczynski's Avatar
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    Panasonic make very strange choices when it comes to bitrates on cameras. The UX-180 has a 200mb mode for 1080p, yet 4k is limited to 100mb. Those extra 100mbs would better suite the 4k. What good is 200mbs fullHD limited to 4:2:0 8bit?
    Shoot for the Impossible...Then do it.


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    #13
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    The 200mb is intraframe only, the 100mb 4k is long-GoP. The compression on the 100mb is much more efficient and vastly more processor intensive. It is not a case of the 1080p getting "more" than the 4k, there is much more going on than just the bitrate difference.


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    #14
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    Barry said: "The 200mb is intraframe only, the 100mb 4k is long-GoP. "

    Just to clarify, that is for the UX-180. I-frame @ 100mb is available on the PX270. Correct me if I am mistaken, the Intra-100 codec on the 270 produces 10bit 4:2:2.

    Best Regards,
    Grant


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    #15
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    Sorry, total brain short. I was thinking of the DVX200 and EVA1 codecs, not the PX270 at all. Sorry!


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    #16
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    Thanks Barry. Since you wrote the proverbial book, you were shakin my world.

    Grant


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    #17
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    Nothing that a little paying-attention-to-the-thread-I'm-in won't fix...


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