FORUMS: list search recent posts

DNxHD 444 vs Prores 4444

COW Forums : DaVinci Resolve

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Andreas Hylander
DNxHD 444 vs Prores 4444
on Aug 27, 2012 at 10:54:42 am

Hi all,

Google failed me, and my lunch break is only that long.
I am about to grade a feature, and was supposed to get prores 4444. Now it looks like it might be DNxHD 444 instead. AFAIK it's the same bit rate and everything, and I will not use any alphas.

So my question is; has anyone done a comparison in quality between the two? Worked with them, conformed with them? I figure they are virtually indentical, but the DNxHD-version is not burdened with an Apple-only mantra?


Thanks in advance,


Andreas


_________________________
Color
VFX


Return to posts index

Robert Houllahan
Re: DNxHD 444 vs Prores 4444
on Aug 27, 2012 at 2:28:23 pm

The two file formats look very similar on paper were the DNxHD files created in camera or converted?

-Rob-

Robert Houllahan
Director / Colorist
Cinelab Inc.
http://www.cinelab.com

MAHC-PRO 6-Core 3X GTX285 20Tb SAS Wave Panel Panny 11UK SDI Plasma. Light-Space CMS + Hubble


Return to posts index

Andreas Hylander
Re: DNxHD 444 vs Prores 4444
on Aug 27, 2012 at 5:10:47 pm

Thanks Rob,

The files will come from a conform-session on Resolve, where the original files were ProRes straight from the Alexa camera. However, with the current difficulty to export Prores from Windows we tried DNxHD.

/ Andreas


_________________________
Color
VFX


Return to posts index


Sascha Haber
Re: DNxHD 444 vs Prores 4444
on Aug 28, 2012 at 7:46:40 am

I not add another round of encoding to already existing ProRes.
Either ask for the original Alexa files used and reconform
or ask for DPX.
Maybe show them a test how double encode will look .
If they dont care, why should you :)

A slice of color...

DaVinci 9b3 OSX 10.8
MacPro 5.1 2x2,4 24GB
RAID0 8TB
GTX 470 / Quadro 4000
Extreme 3D+

Colorist / Aerial footage nerd
http://vimeo.com/saschahaber


Return to posts index

Paul Provost
Re: DNxHD 444 vs Prores 4444
on Aug 28, 2012 at 4:57:21 pm

[Sascha Haber] "If they dont care, why should you :)"

because if the end product looks bad they blame the colorist?


Return to posts index

Sascha Haber
Re: DNxHD 444 vs Prores 4444
on Aug 28, 2012 at 5:53:19 pm

You did not do your job then...neither did your colleague , the post producer.

A slice of color...

DaVinci 9b3 OSX 10.8
MacPro 5.1 2x2,4 24GB
RAID0 8TB
GTX 470 / Quadro 4000
Extreme 3D+

Colorist / Aerial footage nerd
http://vimeo.com/saschahaber


Return to posts index


Paul Provost
Re: DNxHD 444 vs Prores 4444
on Aug 28, 2012 at 5:54:37 pm

not always that simple to just pass the blame backwards...

http://www.4Kfinish.com | owner-colorist | Hollywood, CA


Return to posts index

Mikael Reidar
Re: DNxHD 444 vs Prores 4444
on Aug 28, 2012 at 7:31:44 pm

In theory they should be the same in different containers. But why not stick to the camera-files? Your Windows will read them. And then you can finish of by delivering dpx or dnxhd depending on the receiving platform.


Return to posts index

Andreas Hylander
Re: DNxHD 444 vs Prores 4444
on Aug 28, 2012 at 7:43:48 pm

Hi,

You're all quite right. The reason is that there is over 80TB of camerafiles, which will take too long to transfer once we get going. Hence, the need to shorten it down a bit.

We just scored a Mac-Resolve for testing purposes earlier today though, so the whole discussion suddenly turned purely hypthetical.

Thanks all for your answers and insights,


Andreas


_________________________
Color
VFX


Return to posts index


Sascha Haber
Re: DNxHD 444 vs Prores 4444
on Aug 28, 2012 at 9:21:48 pm

Ahhh , so we are talking Arri Raw now ?
Well, 80 TB is something..
But even if they encode everything to 3k DPX it won't be more than 4TB if you go for selected takes.
My point was , it needs some planing to not get lost in the data jungle when doing a feature, and simulating it on a 5 min piece can be the difference between a smooth ride and a vacation in post pro hell :)

A slice of color...

DaVinci 9b3 OSX 10.8
MacPro 5.1 2x2,4 24GB
RAID0 8TB
GTX 470 / Quadro 4000
Extreme 3D+

Colorist / Aerial footage nerd
http://vimeo.com/saschahaber


Return to posts index

Andreas Hylander
Re: DNxHD 444 vs Prores 4444
on Aug 28, 2012 at 10:18:05 pm

Hi Sascha,

Nope, no feature - just a veeeeery long TV-series (and the files are Prores QTs).

I quite agree with doing proper tests (not just a few minutes), so we're gearing up for doing a full 1-hour random episode and clock all different parts of it.

Cheers,


Andreas


_________________________
Color
VFX


Return to posts index

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