Spartacus
Veteran
PAL footage has 25 fps.
Each frame has two fields, either recorded at the same point of time (progressive) or at different points of time (interlaced).
HD specification knows two standards 720p and 1080i (there´s no PAL or NTSC anymore, but they sticked with the different framerates...)
AFAIN, 1080 footage per definition is an interlaced format, but that doesn´t mean the two fields can´t be aquired at the same time (as progressive frames).
A 1080 timline will simply interpret the progressive frame as an interlaced one, just like when importing a still frame .tif to an interlaced timeline.
The footage will still "shutter" if pans are too fast aso.
This is a basic explanation, any of you EEs out there feel free to deepen/correct it.
PS 720p50 is a new and different beast promoted by the EBU with actually 50 PROGRESSIVE frames per second being broadcasted, resulting in smoother movements with great sharpness... http://www.ebu.ch/en/technical/trev/trev_301-editorial.html
Each frame has two fields, either recorded at the same point of time (progressive) or at different points of time (interlaced).
HD specification knows two standards 720p and 1080i (there´s no PAL or NTSC anymore, but they sticked with the different framerates...)
AFAIN, 1080 footage per definition is an interlaced format, but that doesn´t mean the two fields can´t be aquired at the same time (as progressive frames).
A 1080 timline will simply interpret the progressive frame as an interlaced one, just like when importing a still frame .tif to an interlaced timeline.
The footage will still "shutter" if pans are too fast aso.
This is a basic explanation, any of you EEs out there feel free to deepen/correct it.
PS 720p50 is a new and different beast promoted by the EBU with actually 50 PROGRESSIVE frames per second being broadcasted, resulting in smoother movements with great sharpness... http://www.ebu.ch/en/technical/trev/trev_301-editorial.html
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