DCP Sony F3 Advice

DaVinci Resolve

DCP Sony F3 Advice

Posted by Fred Ricci on July 18, 2011 at 3:28 pm

Hi there
I am doing some tests for a feature film to be shot with a Sony F3 and recorded to a Kipro in 1920p prores HQ.
Should I grade with the normal scale video or unscalled full?
I will render to 16 bit Tiff, with a lut Rec709 to XYZ that I found here in the forum. Did anyone use the XYZ Tiff from Resolve?
Any advice would be much apreciated.
Thanks

NEHALEM OCTO 2,26
GT 120
GTX 285
8 Giga RAM
SOFT RAID 8 Tera
Wave
Eizo 243 + Hdlink displayport
DAV, COLOR, FINAL CUT AND MEDIA COMP

Jay Moffat replied 14 years, 9 months ago 8 Members · 16 Replies
16 Replies

Charlie Edison
July 18, 2011 at 6:00 pm

Sounds like a plan!

I use unscaled and render xyz 16bit tiff for dcp encoding and the results are spot on!
I’m not sure why you’d want a rec709 lut on their unless the guys doing the dcp have asked for it.

Stick with unscaled xyz for dcp and render RGB10bit with the rec709 lut for tape deliverables..

(or add rec709 lut and powermaster straight out to tape)
Fred Ricci
July 18, 2011 at 8:55 pm

Hi Charlie
Thanks for the answer.
The Lut is from Rec709 to XYZ, created with cinespace by a member of the forum, https://forums.creativecow.net/readpost/277/5053 , and worked well for my first DCP from 5D footage, but I’ve graded it in normally scaled.
What would be the benefit for me to grade with unscalled, since the monitor I am using at the moment is a broadcast LCD from JVC? The footage looks very high contrast with unscalled on, and I am afraid that if I lift it, it will look washed in the big screen.

NEHALEM OCTO 2,26
GT 120
GTX 285
8 Giga RAM
SOFT RAID 8 Tera
Wave
Eizo 243 + Hdlink displayport
DAV, COLOR, FINAL CUT AND MEDIA COMP
Gabriele Turchi
July 19, 2011 at 2:43 am

are DCP specs full range 0-1023 ?

fred: i think that full range signal require a dual link RGB SDI connection (am i wrong ?)

g
Fred Fleureau
July 19, 2011 at 9:00 am

Right Gaby.
The RGB2XYZ lut from cinespace is very accurate compare from the one included in Resolve, so go Freddy.

Fred Fleureau

Untitled Studios Paris
https://www.untitled-studios.com
Fred Ricci
July 19, 2011 at 11:38 am

Merci mon maitre!
But what about normally scalled or full range? Wich one for me?

NEHALEM OCTO 2,26
GT 120
GTX 285
8 Giga RAM
SOFT RAID 8 Tera
Wave
Eizo 243 + Hdlink displayport
DAV, COLOR, FINAL CUT AND MEDIA COMP
Fred Fleureau
July 19, 2011 at 11:07 pm

vous avez pris cher en Copa ? vous cherchez des tireurs de pénalty, c’est ça? :))

Fred Fleureau

Untitled Studios Paris
https://www.untitled-studios.com
Fred Ricci
July 20, 2011 at 7:19 am

LOL!
France also have a problem with penaltys, don’t they? Remember 2004!

NEHALEM OCTO 2,26
GT 120
GTX 285
8 Giga RAM
SOFT RAID 8 Tera
Wave
Eizo 243 + Hdlink displayport
DAV, COLOR, FINAL CUT AND MEDIA COMP
Fred Fleureau
July 20, 2011 at 8:41 am

Hahaha …. France don’t even play … they prefer to stay in the bus with some randoms girls …. gimme a ring when you get a chance.
Jose Lomeña
July 20, 2011 at 2:16 pm

Hi Fred, I can’t understand this

RGB2XYZ of resolve can be inaccurate?. RGB to XYZ is a basic task, how it can be bad?

I think you are referring that you grade with rec709 and cinema is DCI-P3, and you want a RGB709 2 XYZP3 and this is a totally different lut.
Fred Fleureau
July 20, 2011 at 4:41 pm

Hi José,

RGB2XYZ for the render file output prior JPEG2000 encoding …. this LUT gives really accurate results.

Good job on the Red Forum btw.

Fred

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