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Variable Frame Rate (VFR) Recording
Chapter 3 Recording and Playback
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 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/24P, 720P/24PN Set to 22 fps or lower.
720P/30P, 720P/30PN Set to 26 fps or lower.
720P/25P, 720P/25PN Set to 23 fps or lower.
• The 720P/24P, 720P/30P and 720P/25P formats
provide a quick motion effect when processed using
a nonlinear editing system.
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 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 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/24P, 720P/24PN Set to 26 fps or higher.
720P/30P, 720P/30PN Set to 32 fps or higher.
720P/25P, 720P/25PN Set to 27 fps or higher.
• The 720P/24P, 720P/30P and 720P/25P formats
provide a slow motion effect when processed using a
nonlinear editing system.
Shooting in the 1080i/480i
Progressive Mode
Selecting 30P, 24P or 24PA (1080i or 480i mode) in
the REC FORMAT in the setting menu RECORDING
SETUP screen enables shooting in the progressive
mode.
■30P mode
This mode enables shooting 30 fps video in the
progressive mode. The 30 fps video signal is
converted to a 60-field interlaced signal for output and
recording.
• This guarantees high-quality video output.
• As shown in the illustration, the conventional 24P
(2:3) conversion system for editing extends the
BoCe, CoDe, FoGe and GoHe fields into adjacent
frames, which causes a drop in picture quality.
• By contrast, the 24P advance conversion system
drops the BoCe and FoGe fields to produce video
of higher quality. Using an editing system that is
compatible with advanced conversion will help to
produce better video quality than the normal 24P
mode.
• Use the normal 24P mode when working with other
editing systems.
<Note>
The following applies to shooting in the progressive
mode.
• A gain of 18 dB cannot be used.
• Set the shutter speed to 1/50 (OFF) or to 1/60.
• There may be a slight delay at the start of recording
when shooting in the 24P or 24P advance mode
because 5 frames are recorded at a time.
