FORUMS: list search recent posts

DPX vs Prores4444 for Sony A7 DSLR 4K Footage

COW Forums : DaVinci Resolve

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Jason Morehouse
DPX vs Prores4444 for Sony A7 DSLR 4K Footage
on Mar 22, 2017 at 2:08:08 pm

Hi,

I'm currently working on VFX-heavy short and the VFX artist has been sending his work in prores4444 files. I'm used to working on DPX or TIFF and was wondering if prores will limit color grading capabilities in my film. As expected of shooting on DSLR, there's a lot of grain and lighting problems in my film. Will there be a big difference working off of prores4444 files instead DPX? I remember prores is 12bit while DPX is capable of 16. I'm wondering if I need to ask the VFX artist to re-export to an uncompressed format for better color grading. Is there very a noticeable difference? The final export will be a DCP for film festivals.

Thanks in advance for your answers.


Return to posts index

Tero Ahlfors
Re: DPX vs Prores4444 for Sony A7 DSLR 4K Footage
on Mar 22, 2017 at 2:15:08 pm

Your camera probably shoots highly compressed 8-bit footage in 4:2:0 chroma subsampling. I would say both of those formats are kinda overkill but I would probably use the prores4444 especially if you're actually working in 4K. Those uncompressed 4K DPX's will be pretty heavy and need really fast drives to playback.


Return to posts index

Jason Morehouse
Re: DPX vs Prores4444 for Sony A7 DSLR 4K Footage
on Mar 22, 2017 at 2:23:58 pm

Oh, so since the Sony A7 mp4 container is 8bit anyway, dpx will be an unnecessary bump up... Is that what you mean? Any room for improvement with my colorist would be great but re-exporting with dpx would definitely be a pain in the ass. Is there no noticeable advantages besides faster playback with dpx on Davinci? Thanks.


Return to posts index


Tero Ahlfors
Re: DPX vs Prores4444 for Sony A7 DSLR 4K Footage
on Mar 22, 2017 at 2:34:35 pm

[Jason Morehouse] "dpx will be an unnecessary bump up... Is that what you mean?"

Yes.

[Jason Morehouse] "faster playback with dpx on Davinci?"

I kinda doubt that especially if you're working with 4K sequences and you don't have a 2GB/s RAID.


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]