208
04/2007
MOVIECAM COMPACT Mk2
11 – OPERATING THE COMPACT MK2
209
04/2007
MOVIECAM COMPACT Mk2
11 – OPERATING THE COMPACT MK2
SPEED CONTROL AND SYNCHRONIZATION
The drive of the MOVIECAM COMPACT Mk2 has an
integrated crystal control with a tolerance smaller than
¼ of the frame height per 1.000 ft film roll. This crystal
controls all film speeds from 1 to 50 fps. Inputs outside
this range are signalled by either 1 or 50 flashing in the
display on camera and Readout resp. Remote Control
Box. As long as the camera is not running with the pre-
set frame rate, e.g. during its start-up (approx. 1.3 sec.
to 24 fps), the Sync warning LED blinks on the Readout
or Remote Control Box. According to the requirements,
the camera can be controlled either with the integrated
crystal control or with an external device.
SYNCHRONIZATION
Example 1:
The possibility of synchronizing the MOVIECAM COM-
PACT Mk2 with TV and computer screens is limited
when no cable connection is used.
Handling:
1. Choose frame rate: with a frequency of 50 Hz – 25
fps, with 60 Hz – 30 fps.
2. Run the film-loaded camera and shift the image sepa-
ration bar on the TV or computer screen toward the
bottom of the viewfinder image by pushing or raising
the UP/DOWN PHASE switch
[44]
on the control
board (fig. 11/1).
As long as the bar remains in this position, it is not visib-
le on film.
Caution!
Due to the relative instability of video signals,
synchronizing the MOVIECAM COMPACT Mk2
without using the synchronization tool provided
by the camera can only be maintained for some
time. Longer “video sync” settings are difficult! The
sync setting without using the synchronization faci-
lities cannot automatically be repeated; you have
to re-adjust the phase position after each start
– this procedure engenders unnecessary waste of
raw stock.
Example 2:
Synchronization with a projector without cable connec-
tion.
Handling:
1. Set the camera’s frame rate equal to the one of the
projector, e.g. 24 fps.
2. Run the camera and push or raise the UP/DOWN
PHASE switch
[44]
until the projected picture
appears in the viewfinder as dark as possible.
Synchronization is given as long as the projector and
the camera are RUNNING.
Precondition: projector with a stabilized drive.
Example 3:
Synchronization at a frame speed of 24 fps with
discharging (pulsating) lamps, e.g. HMI lamps, with a
frequency of 50 Hz is not possible.