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OPERATION
access the Format menu. Using the
menu. Use the
&
press the SELECT key to show the Character style sub menu.
currently selected character style is shown in reverse video. Press the
keys one or more times to select the desired style. Press the FORMAT
or CLR keys to exit the format menu, or press the SELECT key to return to
the CONFIG drop down menu.
3.12.5 VCG Drop Frame Indicator (NTSC Only)
The following special indicators are used between the seconds and frames
digits in the character generator to identify non drop frame and drop frame
code (NTSC only).
Non Drop Frame
Drop Frame (NTSC) Period (.)
3.12.6 VCG Film number Pulldown Indicator (NTSC only)
Film is typically viewed at 24 frames per second (fps) while NTSC video is
viewed at 30 fps. To compensate for this difference in the frame rates,
telecines use a 2/3 pulldown. Since each video frame is composed of two
video fields, video is viewed at 60 fields per second. Telecines can transfer
24 film frames to 60 video fields (30 video frames). The resulting ratio is
24:60 or 2:5, which means 2 film frames every 5 video fields. The 2/3
implies that one of the film frames is transferred to 2 video fields, the
following film frame is transferred to 3 video fields, and so on.
A video frame is always composed of a field 1/field 2 sequence, and is
defined by a unique time code number. The film frames will not always be
in phase with the video frames. With the 2/3 pulldown, the film frames
alternate between being 2 video fields only and 3 video field long. The 2/3
sequence creates four types of picture frames, called A, B, C, and D.
Figure 0-15 shows the relationship between the time code, video and film
frames.
0
F i l m
B
V i d e o
B
B
B
0
1 / 3 0
B B
Figure 0-15: Film to Video Relationships
Model 4025 Film Footage Encoder Manual
&
keys to highlight the CHAR STYLE menu item and
Example
Colon (:)
01:10:50:20
01:10:50.20
1 / 2 4
1 / 1 2
C
D
C
C
D
D
1 / 1 5
1 / 1 0
B C
C D
keys drop down the CONFIG
1 / 8
1 / 6
A
D
A
A
2 / 1 5
1 / 6
D D
A A
The
&
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