Mixing 24p And 25p Footage

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Ron Jackson
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My main outfit is 25p. I am looking at a Canon Ixus compact that will shoot 1080p video at 24p, (no 25p for reasons known only to Canon).

Can I mix footage shot at the two rates? I use FCP 7 (badly).

The 24p stuff would be cutaway shots and the like, with audio synch not an issue if issue it becomes via mixing rates.

Ron

ps Panasonic are at it as well with their GH Lumix models. Would have hoped it would have dawned on these manufacturers that the PAL market is likely to expand more than the NTSC market, so a for them simple software tweak for stills cameras increasingly sold on their "Full HD" video capabilities makes sense.

pps Irony is that cameras probably made in China which is PAL

Ron Jackson

Alan Roberts
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You would think that 25 would be an option, wouldn't you?

If you have to mix the footage, then your best option is to make sure that the 245p footage is treated as though it were 25p, i.e. played 4% fast. If you don't do that, FCP will probably to try to do a (very poor) frame-rate conversion which will result in amazingly jumpy video. I don't know how you force FCP to play it at the wrong spped (i.e. the right speed for the project) but there ought ot be a setting somewhere in it.

Get my test cards document, and cards for 625, 525, 720 and 1080. Thanks to Gavin Gration for hosting them.
Camera settings documents are held by Daniel Browning and at the EBU
My book, 'Circles of Confusion' is available here.
Also EBU Tech.3335 tells how to test cameras, and R.118 tells how to use the results.

PaulD
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Hi
FCP comes with Cinema Tools, which has a menu option for conforming QT movies to run natively at a different frame rate. But it doesn't work with non-QT long GOP camera formats, so you use it after transcoding to ProRes or AIC.

It operates destructively (non-undoable) so make a copy of your original footage if you will ever need it to run at 24fps in future.

Ron Jackson
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Thanks for the responses. I really need a compact still cam so I thought might as well get one with some video capabilities. Ideally, though the world of these cameras seems not ideal if you live in PAL land, 25p.

Have overseas filming trip looming so might have to take the plunge, 24p and all, and sort it out later while cursing and squealing at my computer.

Beyond me why no 25p . Same with the top end Lumixs, which are used for serious video, 24p only.

Maybe these camera manufacturers, a bit like Apple, think they are in a sellers market so if you don't like well ----- off,

Ron

Ron Jackson

Ron Spicer
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Joined: Jul 22 2001
Ron Jackson wrote:
Thanks for the responses. I really need a compact still cam so I thought might as well get one with some video capabilities. Ideally, though the world of these cameras seems not ideal if you live in PAL land, 25p.

Have overseas filming trip looming so might have to take the plunge, 24p and all, and sort it out later while cursing and squealing at my computer.

Beyond me why no 25p . Same with the top end Lumixs, which are used for serious video, 24p only.

Maybe these camera manufacturers, a bit like Apple, think they are in a sellers market so if you don't like well ----- off,

Ron

Here - here! I got all mentally dolled up over the Canon XA10 then, when I got the chance to really have a quick look, that 24p stuff was like a ten foot fence . . . the film look as they say, to take away the crispness of originality. They should realise we can introduce a film look if we wish so the original should be the most clearly defining.

Ron Jackson
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I thought the XA10 is 25p at least in PAL land, Ron

Ron Jackson

Dave Jervis
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It looks as if the Panasonic G3 (UK version) does 1920 x 1080 50i from a 25p sensor output (but that's not a compact of course. The UK TZ10/20 would only do 1280 x 720 25p/50p. I assume the TZ 20 only does 1920 x 1080 as interlaced video..?).
dave