Panasonic AG-HPX172EN User Manual

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Using variable frame rates (VFR)
Standard speed shooting for making 
commercials and dramas
When producing commercials and dramas to be 
shown on a TV screen, as in the case of HDTV/
SDTV and other broadcasts, a frame rate of 25 fps 
(frames per second) is the norm (1x speed).
If you use the settings below, the same kind of 
playback as when the programs are broadcast can 
be obtained. Commercials and music clips will be 
recorded with a high film-like picture quality while 
the number of frames is also ideally suited to TV 
broadcasts.
Recording format
(REC FORMAT)
Recording frame rate
(FRAME RATE)
720P/25P
(2:2 pull-down)
25 fps*
720P/25PN 
(native recording)
Undercrank shooting
This way of shooting provides quick motion effects 
used to present such scenes as the movement of 
clouds, someone standing among crowd of people, 
and moves made by martial artists. If, for instance, 
you have shot scenes using the 25P recording 
format for specifying the playback frames, you can 
double the speed of the quick motion effects by 
setting the VFR recording frame rate to 12 fps.
Recording format
(REC FORMAT)
Recording frame rate
(FRAME RATE)
720P/25P, 720P/25PN
Set to 24 fps or lower.*
In the case of the 720P/25P format, the quick 
motion effect can be obtained by using a 
nonlinear editing system to process what has 
been recorded.
Overcrank shooting
This way of shooting provides slow motion effects 
used to show car chases as well as action scenes, 
climax scenes and other dramatic presentations.
If, for instance, you have shot scenes using the 
25P recording format for specifying the playback 
frames, you can obtain slow motion effects with the 
speed halved by setting the recording frame rate to 
50 fps. Images in the 720P progressive format will 
create smoothly flowing slow motion sequences 
with a high picture quality.
Recording format
(REC FORMAT)
Recording frame rate
(FRAME RATE)
720P/25P, 720P/25PN
Set to 26 fps or higher.*
In the case of the 720P/25P format, the slow 
motion effect can be obtained by using a 
nonlinear editing system to process what has 
been recorded.
*  You can select any of 20 recording frame rates 
ranging from 12 frames per second (fps) to 
50 fps. (Page 97)
Variable frame rates (VFR) (continued)