Sony BVP-E10 Series, Product Information Manual

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6
Chapter 6 A Quick Lesson on Camera Settings
BVP-E10 Series Product Information Manual
56
6-1. Camera Settings
Although accurate alignment and matching of
cameras generally requires skilled and experienced
operators, for day-to-day operation the automatic
functions included in the BVP-E10 series cameras, and
the stability provided by the digital processing allow
excellent picture quality to be maintained without
skilled operators
The following information may be used as a guide for
such operation.
1.
One-touch power on
Use the main switch of the power supply to turn on/off
the whole system rather than using the power on/off
switches on the individual devices for operating
convenience.
2.
Warm-up time
A camera system can be used to start shooting within
a few seconds after power is turned on. If the camera
is connected in a large system environment, it may
require a little more time especially for System Locking
after the power is turned on. It is recommended that
system components that need continual system
stability, such as a sync-generator, should remain
powered on at all times.
3.
Camera head connection
(1) When the camera head connection needs to be
changed, turn off the HEAD POWER using the
switches on the CCU or RCP.
(2) Check the cable indicator on the CCU. If the
Cable "Open" LED is illuminated, ensure that
the cable is correctly connected at both ends.
If the cable "Short" LED is illuminated, the cable
may be faulty. Do not use until the problem has
been rectified.
(3) When changing the accessories such as a lens
or viewfinder, it is possible to turn the camera
power off using the POWER SW on the camera
adaptor. Ensure this is switched back on when
the change is completed
4.
Installation
When cameras are first installed, the standard
operating conditions (knee, matrix, gamma etc) should
be stored in the camera reference file. These settings
can then be quickly recalled just by pressing the
Standard button. This clears any adjustments which
may have been made by another operator.
5.
Scene files
For settings which will be used frequently (different
studio lighting settings, for example), scene files
should be created. These settings can then be quickly
recreated by a single button press.
6.
Camera adjustment
(1) Press the STANDARD button to clear the data
from the last shooting, or execute Auto Setup.
(2) Perform an Auto Black balance
(3) Perform an auto white balance using a gray
scale or standard white chart. in the same
lighting conditions that will be used for
programme shooting. Ensure the chart is
uniformly illuminated.
7.
Precise camera adjustment
(1) For more precise adjustment of the camera, a
grey scale chart is recommended- Check the
gray scale for any stains, spots, cracks, or
imperfections. Old, damaged or discoloured
chart should not be used. (Keep the chart at
normal room temperature in a dark area to
prolong its useful life).
(2) Accurate alignment can only be made if the
waveform monitor and picture monitor used are
themselves accurately maintained.
(3) CCU and system check Switch on Colour bars,
and ensure the colour bar level and black
balance of each camera is the same level. Any
discrepancies point to errors in the monitoring
system, or in the alignment of the CCU, and
should be eliminated before attempting camera
adjustments.
(4) Gray scale check View the grey scale chart,
and monitor using picture and waveform
monitors. Use the iris control to adjust the white
level to 100%. Execute Auto White or adjust
RGB WHT to make the R/G/B levels match. This
can be done using the RGB selection from the
waveform monitoring, or by viewing the
composite output from the camera and
checking that there is no chroma present
(5) The grey scale should be uniform, with
negligible chroma on any of the steps. Precise
adjustments of Flare, Black Level and Gamma
can all be made in this way, but require skill and
experience, and are outside the scope of this
document.
8.
Colour matching between the cameras
Even after making the above camera adjustments,
there still might be a very small difference between the
cameras. This difference is usually so slight that it can
be ignored. However, if it is desired to make a closer
match, then this should be achieved by Choosing one
camera as a reference and adjusting the levels of
black, gamma and flare of the other cameras to match
those of the chosen reference camera.
Notes
Be sure to situate each camera as close as possible to
each other because the reflected light from the test
chart changes depending on the angle of reflection
even when shooting the same chart.
9.
End
When shooting is finished, just turn off the main switch
of the CCU power supply. When powered up next time,
the camera will return to exactly the same condition as
before switch off