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1080 / 720p confusion
This question relates to a job I have had cut on Avid, but is not specifically Avid related.
Please note that the following is all PAL.
I recently shot a corporate on a Canon 7D. To take advantage of the 7Ds 50fps all GV footage was shot at 720p.
There was also one Talking Head which was shot at 1080p, 25fps.I discussed the workflow with the Avid facility and we discussed crating a 720p project and simply downsizing the 1080p material.
However, it turns out that the facility created a 1080i project-their argument being that as the project was being mastered to a 1080 HD tape it made more sense.
Is this the correct approach? I would have thought working in a 720p project would best.
How badly is 720p footage affected whenw working in a 10801 timeline? -
1 Reply
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[Phil Doherty] “it turns out that the facility created a 1080i project-their argument being that as the project was being mastered to a 1080 HD tape it made more sense.
Is this the correct approach?”
Yes, provided a number of rules were followed.
1) They are using Avid MCv4 or higher
2) They imported each type of source material into a project that corresponds (i.e. 720p50 in a 720p50 project, 1080p25 in a 1080p25 project).
3) They then created the 1080i50 project and opened the capture bins from the previous two projects there.
Avid is not a resolution-independent platform – therefore if you make a project a certain format, anything you import into that project will be transcoded to that format. By creating the individual projects, Avid understands to keep the footage as is (transcoding to MXF of course, but not changing frame-rate or resolution). Then when that material is opened in a different project type, Avid knows to apply motion adapters to the source material in order to properly playback in the new project type.
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