720p, 1080p and broadcasting workflow at DVinfo.net

Cees van Kempen · January 17th, 2011, 11:30 AM

I don't know if this is the right place for my question, but I give it a shot.

I acquire in nano I-Frame only @ 180 mbps or higher. Usually in 1080p25. For my project I do however also have quite some footage at 720p50/60, converted to 25p (thus for slomo effect). So a significant part of my project is 720p. If intended for broadcasting, should my workflow further be based on a 1080p timeline (and uprez the the 720) or on a 720p timeline (and downrez the 1080)? I work in FCP by the way. Any recommendations?

Ron Aerts · January 20th, 2011, 11:34 PM

I believe most of the broadcast is 720p anyway. Due to the image quality/bandwith ratio this format was embraced by a lot of broadcasters for HD.
I suggest stay at 720 and downconvert 1080.
Don't forget that the EXcams use a down/up trick for the sensor to output 720. As it is 1920 native these images look better than 720, specially if you use snapshots.

January 17th, 2011, 11:30 AM	#1
Cees van Kempen Major Player Join Date: Jan 2010 Location: Nieuw-Vossemeer, The Netherlands Posts: 455	720p, 1080p and broadcasting workflow I don't know if this is the right place for my question, but I give it a shot. I acquire in nano I-Frame only @ 180 mbps or higher. Usually in 1080p25. For my project I do however also have quite some footage at 720p50/60, converted to 25p (thus for slomo effect). So a significant part of my project is 720p. If intended for broadcasting, should my workflow further be based on a 1080p timeline (and uprez the the 720) or on a 720p timeline (and downrez the 1080)? I work in FCP by the way. Any recommendations?

January 20th, 2011, 11:34 PM	#2
Ron Aerts Regular Crew Join Date: Feb 2010 Location: Drachten, Netherlands Posts: 179	I believe most of the broadcast is 720p anyway. Due to the image quality/bandwith ratio this format was embraced by a lot of broadcasters for HD. I suggest stay at 720 and downconvert 1080. Don't forget that the EXcams use a down/up trick for the sensor to output 720. As it is 1920 native these images look better than 720, specially if you use snapshots.