Optimal Procoder 3 format for editing? at DVinfo.net

Michael Daugaard · April 19th, 2010, 07:25 AM

Hi Guys

Regarding Canon's H.264 from the 7D and T2i:
I'm searching for an optimal Procoder 3 format for subsequent footage editing in AE.
So far I'm noticing a slight drop in dynamic range (lighter blacks, darker whites) in most of my tests.

Any suggestions? File size is of less importance than quality, although I'd like to avoid uncompressed.

Thanks
Mike

John Richard · April 19th, 2010, 08:43 AM

If I remember right, your issue with changes in blacks and highlights is due to the Gamma shift issue when going from Quicktime .mov files to PC based files. There is a change in gamma.

Regis Hervagault · April 19th, 2010, 09:59 AM

canopus HQ codec in procoder has options for
either
"RGB = ITU-R BT.601 range"
or
"convert RGB range [0,255] as IRE[0,100]"

i'm not sure which one to use but maybe one of them can fix your issue.
those gamma issues are annoying.
quicktimes on the pc give rarely same results depending on the player.

Michael Daugaard · April 19th, 2010, 03:21 PM

Thanks, guys. Are you implying that the Canopus HQ codec is the best choice, and/or: this is a format that will adress the gamma issues?

Kind regards,
Mike

Regis Hervagault · April 19th, 2010, 04:45 PM

not sure actually. i used that codec on a previous job and was fine with the results. snappier response than original movs and still good quality.
not really worried about quicktime gamma issues at first since we were pleased with the lower perceived contrast anyways and then used after effects 16 bits colorspace to finish with effects & grading.

April 19th, 2010, 07:25 AM	#1
Michael Daugaard Tourist Join Date: Apr 2010 Location: Denmark Posts: 2	Optimal Procoder 3 format for editing? Hi Guys Regarding Canon's H.264 from the 7D and T2i: I'm searching for an optimal Procoder 3 format for subsequent footage editing in AE. So far I'm noticing a slight drop in dynamic range (lighter blacks, darker whites) in most of my tests. Any suggestions? File size is of less importance than quality, although I'd like to avoid uncompressed. Thanks Mike Last edited by Michael Daugaard; April 19th, 2010 at 03:17 PM.

April 19th, 2010, 03:21 PM	#4
Michael Daugaard Tourist Join Date: Apr 2010 Location: Denmark Posts: 2	Thanks... Thanks, guys. Are you implying that the Canopus HQ codec is the best choice, and/or: this is a format that will adress the gamma issues? Kind regards, Mike

April 19th, 2010, 08:43 AM	#2
John Richard Major Player Join Date: May 2006 Location: Incline Village, Nevada Posts: 604	If I remember right, your issue with changes in blacks and highlights is due to the Gamma shift issue when going from Quicktime .mov files to PC based files. There is a change in gamma.

April 19th, 2010, 09:59 AM	#3
Regis Hervagault New Boot Join Date: Jul 2009 Location: Laval, France Posts: 11	canopus HQ codec in procoder has options for either "RGB = ITU-R BT.601 range" or "convert RGB range [0,255] as IRE[0,100]" i'm not sure which one to use but maybe one of them can fix your issue. those gamma issues are annoying. quicktimes on the pc give rarely same results depending on the player.

April 19th, 2010, 04:45 PM	#5
Regis Hervagault New Boot Join Date: Jul 2009 Location: Laval, France Posts: 11	not sure actually. i used that codec on a previous job and was fine with the results. snappier response than original movs and still good quality. not really worried about quicktime gamma issues at first since we were pleased with the lower perceived contrast anyways and then used after effects 16 bits colorspace to finish with effects & grading.