Skip to main content
Known Participant
April 14, 2019
Question

Compresses Cinema DNG (4:1) from BMPCC 4k doesn't work with Premiere Pro

  • April 14, 2019
  • 5 replies
  • 976 views

Hey!
I recently shot an interview on the BMPCC4K in compressed raw (cinema dng 4:1). It was a long interview and i have to sync the audio with my GH5. Sure i could do this in resolve but i haven't found out how Audio synching works till that point. The problem is that this is a bigger project and i need the interview as voice over. The main project is in premiere pro as i work with that program since ten years. But now i can't find a fast workflow to handle that problem. Sure i could grade the interview in resolve and export it as any prores or h264, but when i want to make a change in the grading i can't do this with the raw clip without exporting it again. Exporting a .xml or .edl doesn't work....it says media offline...and importing the cdng files with the media browser in premiere pro doesn't work either. Does anyone know a usefull workflow that makes sense?

    This topic has been closed for replies.

    5 replies

    Legend
    April 14, 2019

    Your best bet is to use Resolve for the entire project.

    Legend
    April 14, 2019

    I'm not bad mouthing PPro.. it helps gazillions of people do what they want.  But it aint so hard to just kinda go with the flow of technology and options, and use what works for you, even if it is something new. It's annoying learning new UI and stuff, but you already know what's going on 'behind the scenes' so it should be easier for you than you think.

    And you can always just use PPro for what is fast to do there...

    Legend
    April 14, 2019

    If having trouble in resolve with 4k stuff, use 'optimize footage' thing.. and cache it... should be OK with weak computer after that.

    Legend
    April 14, 2019

    hmmmm.

    so, basically it's not a sync problem but a grading problem to fine tune tweaking levels and luminance and so on.. In resolve it's not like PPro.. you define a color space and frame rate, etc. and that's IT... you can't add a gazillion different things ( like telephone footage and so on ) without major adjustments to the nodes, etc.

    I would just stay in resolve the whole time if you can get both the bmpcc and gh5 stuff the way you want it to look...and then export for final product. Exporting to h264 is for 'viewing' , not editing, and you know that.

    This stuff changes fast.. BM is getting away from the original Cinema DNG stuff so it can stuff more stuff on SD cards, but still have raw range, etc.

    Stay in resolve is my gut feeling... use fusion and basic editing stuff if it works for your 'interview' type project.

    Good luck !

    Known Participant
    April 14, 2019

    yeah maybe that's the only solution...i had the plans anyway to get more into resolve

    Legend
    April 14, 2019

    I'm just guessing, but you probably had the bmpcc on AC to DC power to shoot that long ( cause batteries don't last that long).

    Also, you didn't SLATE any of your shots.. but simply used something to put sound into the camera directly. So your bmpcc stuff is in sync cause it's baked in.

    Now you introduce another camera ( GH5 ? ) whatever that is... with the same deal...sound going into the camera via built in mic input on camera ( not slated with jammed timecode etc. )

    So, you first thing it to take the sound from bmpcc and unlink it from bmpcc footage in PPro. That's ONE SEQUENCE NOW.

    Now you have another sequence you make with GH5. Is that sony S log ? I don't know or care, but it's different.

    You have to unlike THAT sound ...

    Since you have no slates to sync sound manually or with jammed sound and camera timecode, you have to do it MANUALLY.

    And it aint easy, and it aint automatic, whether you use PPro or Resolve, or a combination of BOTH.

    If you slate your shots ( even without jammed timecode and putting sound directly into cameras ) you CAN manually sync stuff.. but it takes TIME and finesse.

    So basically your workflow it stupid and now you have to fix it in post.

    In resolve you can punch in your own numbers for linking sound with timecode.... if you can find where it is in sync to begin with.

    I don't know if PPro allows that.

    Basically you have to just 'guess' and deal with what you did and then combine the two sources in third sequence.

    One is bmpcc

    One is Gh5

    3rd is the 'fixed' sync.

    good luck

    Legend
    April 14, 2019

    It's called a 'common slate' … both cameras SEE the slate, ( even without jammed digital time code ) and you say, ACTION and you shoot you stuff...

    THAT is your sync !

    Known Participant
    April 14, 2019

    The Problem is not the sync itself, i had some claps that i can see in the wave forms! I synched it manually in 10 minutes after exporting that h264 from Resolve, the Problem is that i cant find a way to make changes on the cdng in resolve that i can see in premiere without exporting another clip from resolve....