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Activity Forums Sony Cameras EX1 downconversion looks Soft!!!

  • Rafael Amador

    March 8, 2010 at 3:29 am

    Hi Alister,
    Since you mentioned (in a thread about “twitter” few weeks ago) I’ve been using the FC’s de-flicker in some problematic shoots and I have to say that works great.
    The filter eliminate all these “vibrant” areas without softening the picture.
    Rafael

    http://www.nagavideo.com

  • Jim Mcnally

    March 10, 2010 at 6:34 am

    [olof ekbergh] “I just use my AJA KONA or Matrox MX02, to down convert on the fly. “

    Olof when you say you are downconverting on the fly what setup are you actually using? I have an MX02 LE and I’ve seen the phrase several times but not sure how it applies when ingesting a file from the EX3. Or do you output the camera through the MX02 instead of the files off the card?

    Jim McNally
    The Commercial Factory
    http://www.commercialfactory.com

  • Rafael Amador

    March 11, 2010 at 4:02 am

    Hi Jim,
    I guess Olof means playing the files in camera and capturing the SDI out.
    That is the best conversion you can achieve. The video card apply some chroma filtering when going 8b 420 to 10b 422/444.
    You can get similar Chroma filtering on FC (Nattress Chroma Smooth/Sharp) but the rendering takes time.
    With the video card you get it in RT.
    Rafael.

    http://www.nagavideo.com

  • Jim Mcnally

    March 11, 2010 at 3:57 pm

    Oh, okay I understand. I’ll have to try that.

    Thanks!

    Jim McNally
    The Commercial Factory
    http://www.commercialfactory.com

  • Alister Chapman

    March 13, 2010 at 4:32 pm

    Glad you found it works. As it is combining pairs of lines it is dropping the resolution of the HD by around 50% which is about what you want prior to downconverting to SD. Enough to eliminate the twitter but not so much as to make the pictures soft.

    Alister Chapman
    http://www.xdcam-user.com

  • David Burch

    April 17, 2010 at 2:26 am

    I have found I get the best results using our company’s Kona LHe to do the downconversion, but typically this isn’t practical. I used to use Compressor, and before FCS 3.0 came out it did a fantastic job. Since then, however, I have been getting very poor results with it, and have stopped using it for anything that needs downconversion.

    Our company just started to produce Blu Ray discs as well as DVD, so lately I’ve been authoring in Adobe Encore and using Adobe’s media convertor to handle my downconversion. It seems a tad softer than the results I used to get with compressor, but overall the image quality is good enough for DVD. One thing you might try is MPEG Streamclip, which can be found free online. I have had very good results with this program across the board, with everything from ripping DVDs to capturing still frames, downconverting to de-interlacing.

    Overall, it can be very difficult getting downconverted footage to look like true, broadcast-grade SD, and if that is what you need then I’d say a hardware downconverter will be your best bet.

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