Philips SD AG-HPX171E - Manual (Page 34)

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Using variable frame rates (VFR)
Standard speed shooting for movie
production
When making movies to show on a screen, a frame
rate of 24 fps (frames per second), which is the
same as for films, is the norm (1x speed). If you
use the settings below, the same kind of playback
as with screenings can be obtained. By using the
720P progressive mode and cine-like gamma,
high-quality film-like images can be achieved.
Recording format
(REC FORMAT)
Recording frame rate
(FRAME RATE)
720P/24P
(2:3 pull-down)
24 fps*
720P/24PN
(native recording)
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
(30) 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)
50 Hz
720P/25P
(2:2 pull-down)
25 fps*
720P/25PN
(native recording)
59.94 Hz
720P/30P
(2:2 pull-down)
30 fps*
720P/30PN
(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
(24P) 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.*
720P/24P, 720P/24PN Set to 22 fps or lower.*
720P/30P, 720P/30PN Set to 28 fps or lower.*
In the case of the 720P/25P (720P/30P) and
720P/24P formats, 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 (30P) 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 (60) 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.*
720P/24P, 720P/24PN Set to 25 fps or higher.*
720P/30P, 720P/30PN Set to 32 fps or higher.*
In the case of the 720P/25P (720P/30P) and
720P/24P formats, 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
(60) fps. (Page 99)
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Variable frame rates (VFR) (continued)