tv commercial settings...

[cur-sed_neil]

ok guys, here's the dealio:
i'm shooting a tv commercial for a local tv station and have been experimenting with F5 vs F6 settings. here's what i have discovered:
i can see no difference between them!!! i outputted both to dvd as well as vhs and can see zero difference. from all the threads i have read, it seems many lean towards F5 edited in a 29.97 time line for this kind of project, but i have experimented with both 29.97 (F5) and 23.97 (F6) timelines and have found no difference in video or audio "quailty" when outputted to dvd and vhs - they look identical. also, thick detail in both settings produces a sharper image!!
go figure.
so am i wrong to shoot this tv commercial in F6 (24PA), edit it in a 23.97 timeline (in premiere pro 1.5) and give the tv station either a betaSP dub or an AVI of the commercial directly from the 23.97 project ???
all my tests tell me i should have no problem doing this...
any gurus doing it this way?
thanks in advance guys!
8)

 

[Scottdvx100]

Re: tv commercial settings...

Both 24p and 24pa are laid down to tape in 60i format (29.97 fps)

If you play them from tape there is a slight stutter in 24pa when viewing smooth motion. the reason for this is the duplicate frames it inserts to 24fps to make it 29.97.

24p blends some of frames together by taking the odd lines of one frame and combining it with the even fields of the next frame. Visually this provides smoother motion since it duplicates the process of telecine film to video to do the 24 to 29.97 conversion.

24p is the simplest for creating the look of film (24fps) and being able to edit it like regular video (29.97) Use this if you're going out to a normal DVD or video tape. Bring it into a 29.97 timeline like regular video.

24pa is only useful if you want/need to go to a pure 23.98fps timeline.
(i.e. film output or 24fps DVD) 24p can be converted into pure 23.98 as well but it's more round about with modern editing software.

Note that if you have a 23.98 sequence you have to add back in the telecine 2:3 pulldown (just like the 24p mode does) before it can go out to standard video. If your editing software and computer can add it on the fly like FCP then that works to go to tape. If you need to convert and have it look right you may need anopther application.

 

[Barry_Green]

Re: tv commercial settings...

The motion difference between F5 and F6 is fairly minimal, with F5 being slightly smoother.

The idea that F5 would look "sharper" is just downright puzzling. The whole point of THICK mode is to put a vertical blur on your footage. But keep in mind that THICK mode (the default in F5) is designed to put out as much resolution as a television can handle, so it's probably the right setting for your intended usage.