I see the difference !
I have been a still photographer for a very long time :-)
But yes I take your point. There isnt much in it when the image is moving for the general viewer
Exactly. The key point is that it moves. In static, difference is there, 720 upsized is softer than original at full HD. But in movement it's hardly noticiable. (except for the people involved in this business, same happens in still imagery)
So it's up to you to decide.
It's a compromise. 720p will give you the smoothest and most "modern" look and a very good 720 standart while the FX setting a slight jump in resolution but less frames recorded. That would be this latest for narrative.
Those are the metadatas (sorry it's in spanish)
MPEG-4
Formato del perfil : QuickTime
ID Códec : qt
Tamaño del archivo : 37,4MB
Duración : 12seg.
Modo de tasa de bits : Variable
Tasa de bits total : 26,0Mbps
Fecha de codificación : UTC 2013-01-28 06:20:42
Fecha de la etiqueta : UTC 2013-01-28 06:20:47
Librería de codificación : Apple QuickTime 7.7.1
ID : 2
Formato : AVC
Formato/Info : Advanced Video Codec
Formato del perfil : High@L4.2
Ajustes del formato, CABAC : Si
Ajustes del formato, RefFrames : 2marcos
Format_Settings_GOP : M=1, N=12
Modo Muxing : Container profile=High@4.0
ID Códec : avc1
ID Códec/Info : Advanced Video Coding
Duración : 12seg.
Source_Duration/String : 12seg.
Tipo de tasa de bits : Variable
Tasa de bits : 25,0Mbps
Tasa de bits máxima : 26,0Mbps
Ancho : 1 920pixeles
Alto : 1 080pixeles
Relación de aspecto : 16:9
Modo de velocidad de cuadro : Constante
Velocidad de cuadro : 50,000fps
ColorSpace : YUV
ChromaSubsampling : 4:2:0
BitDepth/String : 8bits
Tipo de exploración : Progresivo
Bits/(Pixel*cuadro) : 0.241
Tamaño de pista : 35,8MB (96%)
Source_StreamSize/String : 37,4MB (100%)
Idioma : Inglés
Fecha de codificación : UTC 2013-01-28 06:18:45
Fecha de la etiqueta : UTC 2013-01-28 06:20:47
colour_primaries : BT.709
transfer_characteristics : BT.709
matrix_coefficients : BT.709