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  1. yodani

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    Hi there,

    Could someone please post some RAW - DNG files from Phantom 4 so I can compare them to P3. Various angles and lots of details like trees would be great.

    You could send them via wetransfer.com or post them online somewhere :).

    Thank you,

    Yodani
     
    isopro likes this.
  2. yodani

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  3. yodani

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    Hi Ramphex,
    Thanks for the reply. I got the notification but can't see your message here. I would love too see those raw files.

    Yodani
     
  4. Ramphex

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    Location:
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    Here's a little break down of what's in the zip. There are the DNG files and the JPG files created by the aircraft/camera system on board. None of these have been edited. Some are shot with HDR on, all in 12MP.

    0013 - Cloudy day, slow wind ~400ft up
    0014 - Same as above
    0017 - Same as above
    0022 - Sunny with partial overcast, slow wind, ~400ft elevation from starting point at the car
    0023 - Same as above
    0024 - Same as above
    0025 - Same as above, (start point on elevation by the car so no idea what the actual altitude is due to this building being at a lower altitude)
    0026 - Same as above
    0027 - Same as above
    0030 - Approaching sunset on a clear day, ~400ft up
    0039 - Syma & UDI rescue mission, approaching sunset, medium winds (that took the quads away), ~150ft up
    0040 - Same as above
    0041 - Same as above
    0044 - Sunset, same day as above
    0045 - Same as above
    0046 - Same as above
    0048 - Same as above
    0049 - Same as above

    Enjoy, wish these could provide you the answer you're looking for.

    Dropbox - DNG for Yodani.zip
     
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  5. isopro

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    id love to see the results of your investigation using multiple files, particularly about chromatic aberration close to highlight areas.
     
  6. yodani

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    Thank you a lot. I am downloading them now and try to develop a few to see if it will worth the buy as I am looking mostly to take pictures not video. I know Inspire is better in this respect but that is too large and too expensive for me. Hope you don't mind if I'm posting the develops here?

    Cheers,
    Yodani
     
  7. Ramphex

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    Go ahead, if you can create better images out of those RAW files than the JPG the aircraft produces, please share the knowledge.
     
  8. yodani

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    A few quick develops in Photoshop Camera RAW show that the images produced by P4 are usable for small scale prints. They retain good detail and the sharpness edge to edge is better than previous phantoms.
    There is still the problem of dead pixels but I heard it can be fixed with the DJI program or so.

    Thank you Ramphex for the samples. I hope this will help others see the quality of pictures produced by P4.



     
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  9. yodani

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    The original JPG

    DJI_0022.JPG DJI_0023.JPG DJI_0030.JPG DJI_0048.JPG DJI_0049.JPG DJI_0022.JPG
     
  10. ringolong

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    Going to check these out. Thanks for sharing!

    Took a while to download :eek:
    Screen Shot 2016-03-29 at 8.38.02 PM.png
     
  11. Ramphex

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    Lol nice download speeds, my home internet is only 60Mbps/3Mbps down/up. Unfortunately for location I am, not much competition so really only one provider to choose from. Trying to upload anything at 3Mbps is painful. Can't complain much about the download speeds.

    Seems as day time images developed better than night time images.
     
  12. mirrorimage

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    Interesting that the JPGs take so long to write to the card. I wonder if using a faster card helps? They also look like they have lens correction applied. Thanks for sharing the photos!
     
  13. Ramphex

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    I don't think JPGs take long to write. the DNGs do.
     
  14. mirrorimage

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    But it looks like you were writing both the DNG+JPG at the same time correct? I just ordered myself a faster SD card and hope this will speed up taking photos a bit.
     
  15. Ramphex

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    Yes I was, that does take quite a bit of time, but I believe that's only because RAW is enabled. I did it for the purposes of testing, will be disabling the RAW option as those files are rather large and I do not yet know how to properly develop them.
     
  16. ringolong

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    We are fortunate to have fiber 1GB residential service, and it is super fast in either direction. I get to see the limitations of who I download from including dropbox :)

    I played with the one with you and your car. Turned out good. Thanks again for sharing. I am still waiting on mine :/