1.01 Pal colour shift to output monitor
by Grantly
on
Jul 24, 2007 at 5:03:42 am
Since updating to Color 1.01 on 2 systems we have found a new bug. (running Kona 3 and Kona 2 respectively).
The colour output to the broadcast monitor has additional red pumped into it creating the look of a 2 strip grade. On skin tones they go a good 25% more red/pink.
This seems limited to the broadcast monitor output in the PAL range (any of the 625 settings, 8-bit, 10-bit). If you change your output to an NTSC or HD output it seems to translate correctly.
The viewer on the computer monitor is fine, seems to be limited to the broadcast output.
I'm guessing unless there is known fix we have to rollback the upgrade which should a mountain of fun.
Re: 1.01 Pal colour shift to output monitor by Toby Angwin on Jul 24, 2007 at 6:15:29 am
Unfortunately, this is another example of us PAL folk being left behind. It affects the renders too. You can compensate by pulling the saturation back in Primary out but it's a poor solution.
I guess we wait til 1.0.2
Cheers,
Toby
Toby Angwin
Director
Soup Kitchen Films
http://www.soupkitchenfilms.net
Re: 1.01 Pal colour shift to output monitor by Barti Ddu on Jul 24, 2007 at 4:03:22 pm
Hi, i've noticed a gamma shift too and have reported it to Apple (but you should also definately report it). The test I did was to send a clip to Color, render it with no grade, send back to FCP. Comparing the original clip to the Color clip showed a slight shift in levels. I use a BM card/ PAL. But please do your own tests.
Best,
Barti
Re: 1.01 Pal colour shift to output monitor by Toby Angwin on Jul 24, 2007 at 11:06:00 pm
For me the colour shift occurred on the render. It seems to be just PAL SD as I am doing an HD grade and it's better.
Next week I will have some time and try and see if it is I can get a proper number so you could adjust the gamma or saturation in primary out to compensate for this. It's hardly ideal but if you are too far along a project to start grading again back in FCP (like I was) it will help.
Of course it won't help if you have an NVidia card like the 6800 Ultra. It seems that the talented programmers of Colour have given us Fake Float that says it's float but clips like 8-bit.
Cheers,
Toby
Toby Angwin
Director
Soup Kitchen Films
http://www.soupkitchenfilms.net
Re: 1.01 Pal colour shift to output monitor by Mike Jackson on Jul 26, 2007 at 3:20:47 am
My monitoring is fine, but I get a gold shift in renders out... at HD (not PAL). Never happened in Color 1.0...
Based on my time spent in the world of programming, and the fact that most people don't seem to have these problems, I strongly suspect the graphics cards are the culprits. That's the real danger of doing actual renders with a graphics card - Every card is different, every driver is different, and it becomes impossible to guarantee consistent results from computer to computer (Hell, Apple even warns about it in the manual).
Re: 1.01 Pal colour shift to output monitor by lightning ad on Jul 28, 2007 at 2:40:48 pm
i posted this three weeks ago.....
"'I'm in Pal Land, and am seeing the same red shift (and blue shift)!
My footage is 10bit Uncompresed sd, and switching between the same ungraded shot in Color and FCP there is a definite increase in the red intensity and whilst looking at my hardware scope I can see there is also shift in the phase of a degree or so on both red and blue channels. (I think its phase - the vectorscope rotates slightly!)
I think this makes Color pretty much useless for grading until Apple get it fixed."
Until its gets sorted , them i'm not even bothering to switch Color on - i don't have time to try find unsatisfactory dodge around.
