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4K Camera teardown ...

Discussion in 'Pro/Adv Discussion' started by Dome, Jun 12, 2015.

  1. Dome

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  2. clkilljoy

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    Rhino.S likes this.
  3. fin032

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    Would be good to see the 1080p cam next to it to see where the difference is.
     
  4. apocnz

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    Highly doubt there's any difference ... it'd be all in the processing/gimbal unit.
     
  5. ctp

    ctp

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  6. GhostMaster

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    Yup thats what i want to see, if there is difference... Or its just firmware.
     
  7. blade strike

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    Firmware and 1 missing chip;)
     
  8. apocnz

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    And the additional cooling fan ;) Missing chip is interesting, kinda makes me want to go buy a P3P now, hahaha, I like chips.
     
  9. ianwood

    ianwood Taco Wrangler
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  10. apocnz

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    Even if it is, that's still 125Mb/s ... which is plenty to accommodate the 60mbs 4K or 40Mbs HD recording.

    It does blow a bit for photos tho, hence the lag time in it saving a photo to the card.
     
  11. louforgiveno

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  12. ctp

    ctp

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    Extensive testing by multiple people using a variety of cards ranging from the included stock card (mine tested at 25MB/s sequential write) up to SanDisk Extreme Pro (90MB/s sequential write) have all measured a maximum sequential write speed of the P3P at 11.5MB/s when taking rapid fire and 5AEB photos (140MB J+R). The testing is documented on a few threads here and the one I linked to at DJI.

    The Ambarella A9 SOC is capable of at least SD bus "High Speed" (25MB/s), so the general conclusion is that DJI either has a bug in their firmware or they intentionally have the SD bus locked down to "Normal Speed" (12.5MB/s). AFAIK DJI has never confirmed this bug/feature which really only affects photographers forced to wait 20-30 seconds with the camera locked up writing data to the SD card. 12.5MB/s is plenty fast enough for 4k/UHD (60Mbps/7.5MB/s)
     
  13. ctp

    ctp

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    I just clicked and it works for me?
     
    louforgiveno likes this.
  14. louforgiveno

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    `
    Thanks....just checked again......working now
     
  15. Jbundy63

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    Nice!!! Very Cool