| As fun as it may be to assume this is just Apple being evil, a lot of software has had frame rate issues over the year - including a rounding error between Avid and After Effects that caused a repeated frame. And earlier versions of Screenflow would create very "interesting" frame rates, according to AE.
Although QuickTime can support individual frames with different durations, quite often the displayed frame is an estimate of a certain handful of frames. If just one - say, the first one (taken during start-up) - had an odd duration, it would make the entire movie to appear numerically to be off rate, when it might have been just one naff frame. It's always worth conforming the frame rate in AE's Interpret Footage dialog to what you think it should be, and see if there are any visible problems with the playback - it cures virtually all of the phantom frame rate issues I've encountered.
- Chris
On Mar 27, 2013, at 8:38 PM, Rick wrote: I didn't think it was possible, but I now hate Apple more than before. I find it interesting
that we are back full circle to the early time of cinematography where hand-crank cameras were the norms… at least at that time you could make a conscious decision to go faster or slower, whereas with the iPad or other devices, this control is given to the software/hardware to keep up with the technology limitation ;-)
On Mar 27, 2013, at 7:58 PM, Steve Oakley wrote: yes... and it can be a loose 24 or 30 FPS, hence the fractional frame rates.
S This is true about the frame rate dropping back from 30 to 24 or 25. We were having this discussion today at our office where a client shooting a documentary had several people shooting an event at night and had several people shooting on iphones and Galaxy phones. Man, we love these jobs where we get a bunch of mixed frame rates to deal with.
I did a
Google search on this but not much surfaced. It seems to me that ipads and iPhones drop back to 24 fps when lighting becomes an issue and they need a longer exposure per frame. I'm not 100% sure about this, but that's what I'm seeing so far on footage.
Jack TunnicliffeJava Post Production
I don't have an iPad, but my iPod Touch
shoots 30 fps nominally, but will drop to 24, or 25 at times,
without regard to the settings.
frank felker
On 3/27/2013 8:59 PM, James Culbertson wrote:
As I understand it iDevices don't guarantee any particular
frame rate... it depends upon conditions, and up to some maximum
frame rate depending upon the device and generation.
Depending upon how Premiere is handling them you might want
to run them through AE first to standardize the clip frame rate
to your project frame rate.
James
On Mar 27, 2013, at 4:47 PM, Rick wrote:
I had a client send me 4 videos shot back-to-back
with a first generation ipad. They are lacking in any
tech knowledge (I had to explain ftp to them). I'm
trying to work with the footage in Premiere then going
into AE to finish it.
Two
clips are coming in at 24fps and two are coming in
30fps. Mediainfo shows them at 24.06 and 28.86.
What
is the default frame rate of the ipad? The only thing I
could find online is that you can change it up to 30,
but I don't know if this is default. They don't even
know how to change the settings.
Thanks,
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