37
Variable Frame Rate (VFR) Recording
Chapter 3 Recording and Playback
This camera takes full advantage of P2 card
characteristics by providing frame skipping
(undercranking) recording and high-speed
(overcranking) recording without the use of a frame
rate converter. (The camera must be set to 30PN,
25PN or 24PN to use these functions.) Since the
camera records only the effective frames (native
recording), recording time is 2 to 2.5 times longer than
in the 24P, 30P and 60P modes (25P or 50P at 50 Hz)
(standard recording). Like VARICAM (the AJ-HDC27
series), it also provides a recording format that can
accommodate the frame rate conversion required for
nonlinear editing. (The camera must be set to 30P,
25P or 24P).
<Note>
Variable frame rate (VFR) recording is available only in
the 720P mode.
24PN mode:
The camera recorder shoots in the 24 fps native mode.
The video signals delivering images at a rate of 24 fps
are recorded in 24 frames. The signals are recorded
only in the effective frames so recording is possible for
2.5 times as long.
• Before Variable Frame Rate (VFR) shooting, you
must set the recording frame rate and the recording
format.
• You cannot change the frame rates while recording.
• You can select any of 11 recording frame rates
ranging from 12 frames per second (fps) to 60 fps.
See [Video and Recording Formats] (page 45).
• There may be slight discrepancies between the
recording frame rate displayed and the frame rate at
which the images are actually recorded. Refer to the
table below.
59.94 Hz 50 Hz
Recording
frame rate
displayed
Frame rate
at which
images are
actually
recorded
Recording
frame rate
displayed
Frame rate
at which
images are
actually
recorded
60 59.94 50 50.00
48 48.17 48 48.08
36 35.68 37 36.75
32 32.11 32 32.14
30 29.97 30 29.76
26 26.44 27 27.17
24 23.98 25 25.00
22 22.48 23 23.15
20 19.55 20 19.74
18 17.98 18 17.86
12 12.26 12 12.50
Native recording
1
Select the 720P/30PN or 720P/24PN
(720P/25PN at 50 Hz) recording
format in the REC FORMAT item in the
RECORDING SETUP screen.
For details on menu operation, refer to [Using
the menus] (page 116).
2
Select the appropriate scene file using
the SCENE FILE dial.
• If necessary, before doing this, perform the
camera settings from the setting menu, and
register the scene file.
See [Saving scene files and other settings on
SD memory cards] (page 82).
3
Using the OPERATION TYPE function
on the SCENE FILE screen, select FILM
CAM, and set the desired recording
frame rate using the FRAME RATE
function.
For details on menu operation, refer to [Using
the menus] (page 116).
Variable Frame Rate (VFR) Recording
