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Activity Forums Adobe Premiere Pro Basic workflow question: Epic 5k source

  • Basic workflow question: Epic 5k source

    Posted by Jon Felix on February 27, 2013 at 5:41 pm

    I’m trying to edit with 5k sources into an HD sequence. I’m scaling the footage, and reducing the playback to half resolution and I have a RAID Thunderbolt drive yet still playback stutters, then grinds to a halt. Is my 2011 IMac I7 with 16gb RAM really not up to the task? Please tell me I don’t have to transcode everything or buy a PC!

    Thankyou

    Jon Felix
    RAINDOG MOTION PICTURES
    Los Angeles

    Tero Ahlfors replied 13 years, 2 months ago 3 Members · 2 Replies
  • 2 Replies
  • Angelo Lorenzo

    February 27, 2013 at 6:51 pm

    In a 1080 sequence, you may be limited to dropping resolution to 1/4th. You may have a better experience editing if you do it in a full 5K timeline and use 1/8th or 1/16th quality. Scaling will add CPU load so it’s best avoided until you nest full sequences that have been edit locked.

    If you aren’t using a RED Rocket card to help process RED footage, you’re off loading the process of converting raw video to a viewable video to your CPU; your RAID isn’t a bottleneck in this situation. RED’s format allows you to process less, you still get a readable frame, just at a lower resolution.

    Another thing to consider when you aren’t using any kind of proxy/intermediates for an offline/online is that when you export, you’ll probably be faced with large export times as your CPU has to process the RED footage at full quality 5K then scale it down.

    If you’re on a deadline and decide to switch to some intermediates, I’m in LA and my services are reasonable in price (shameless plug).

    ——————–
    Angelo Lorenzo

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  • Tero Ahlfors

    February 27, 2013 at 9:17 pm

    I have a similar iMac workstation with a Pegasus RAID and I can run 4K RED sequences in 1/4th quality well.

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