ADOBE AFTER EFFECTS: Forum Expressions Tutorials Creative Cloud

S-log

COW Forums : Adobe After Effects

<< PREVIOUS   •   FAQ   •   VIEW ALL   •   PRINT   •   NEXT >>
stig olsenS-log
by on Sep 27, 2011 at 1:35:15 pm

Hi,

I shot a commercial with the Sony F3s S-log. (pro res)
When I link it through AMA (Avid) it looks like the gamma are correct, more flat like 709.
When I instead drag the file into after effects, it looks more contrasty - more like RGB.

Any experience on that?

Stig


Return to posts index

Brian CharlesRe: S-log
by on Sep 27, 2011 at 2:22:04 pm

Are you using a colour managed workflow?

If not colours will not appear correctly in After Effects.

See:

http://help.adobe.com/en_US/aftereffects/cs/using/WS14AC4DDE-84D7-4fc9-B79C...



Return to posts index

stig olsenRe: S-log
by on Sep 27, 2011 at 2:27:16 pm

Hi,

I did go inte project files and choose some different color spaces, but it doesnt change how I see the picture. Its still as contrasty as before. Any ide?


Return to posts index


Walter SoykaRe: S-log
by on Sep 27, 2011 at 2:23:24 pm

You can use the Cineon Converter effect to move S-log to linear. The correct parameters are in the Sony S-Log Whitepaper [link].

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


Return to posts index

stig olsenRe: S-log
by on Sep 27, 2011 at 2:38:09 pm

Thanx, I tried the converter but it only gave me a black picture when the parameters were set?

Cineon Parameter
10 bit code
Conversion Type
Log To Linear
10Bit Black Point
90 (REF BLACK)
Internal Black Point
0 (MIN CODE)
10Bit White Point
636 (REF WHITE)
Internal White Point
255 (MAX CODE. 255 for 8bit)
Gamma
2.96 (when Monitor gamma is 2.2) (1.345 x A for Monitor gamma A)
Highlight Rolloff
120


Return to posts index

stig olsenRe: S-log
by on Sep 27, 2011 at 2:49:11 pm

Btw, I have set the output and project profile to 709.
When I try to interpret the file for assigning profile, the options is greyed out. Why is that happening?

Thanks for your answers.

Stig


Return to posts index


stig olsenRe: S-log
by on Sep 27, 2011 at 3:06:32 pm

And one more thing.
Its shot in prores 422 (ycbcr601) if that is important.

Looks flat (or as it should be I guess) in avid using AMA, but has a very high contrast in After effects.


Return to posts index

Walter SoykaRe: S-log
by on Sep 27, 2011 at 4:28:11 pm

[stig olsen] "When I try to interpret the file for assigning profile, the options is greyed out. Why is that happening?"

I don't think you can override embedded profiles.

However, you could use the Color Profile Converter effect [link]. Maybe linearizing the input profile will help?

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


Return to posts index

stig olsenRe: S-log
by on Sep 30, 2011 at 6:08:45 pm

Ok,

Then what you guys are telling me, is that there really dont exist a good enough support of S-log in AE.
If AE cant read the files correctly, but gives me a high contrast look / RGB-look, this is just not good enough.


Return to posts index

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