1-2 Operator's Manual LDK 5400 - Triax Adapter for LDK 100 Series Introduction
Technology
The LDK 100 Triax camera combines a multi-role
digital camera head using 2/3-inch CCD sensors with
a triax adapter. The result is a flexible camera that is
equally at home in the studio or out on location in an
OBenvironment.
DigitalProcessing
The advanced digital processing of the camera is
based on 12-bit A/D converters and more than 20-bit
internal processing. Two DSPs combine all major
camerafunctions in the digital domain, includingknee,
gamma, contour, matrix and colour correction.
Theintelligentcontinuous automatics facility provides
automatic control of black levels and black shading.
Eachsensorprovidesblackreferencesignalsthatare
used to monitor temperature changes. This means
thatcontinuous automatic correctionisapplied without
operatorintervention.
The digital contour processing uses full amplitude
video RGB signals via an extended dynamic range
contour circuit.
Colorimetryis selected by means of a variable6-point
digital matrix or via preset matrices. Digital gamma
circuits provide a wide range of standardised gamma
curves and enable soft contrast in black scenes to be
enhanced, together with hard contrast and saturated
colour in bright scenes. The matrix and gamma
sequenceis softwareprogrammablefor precise colour
matching.
Film-likecharacteristics
The pivoting knee circuit adapts both the knee point
and the compression ratio according to the highlight
content of the picture to emulate the softly limiting S-
shaped transfer characteristics of film. Digital True
Colour Knee circuitry maintains the correct hue for
compressedhighlights, reproducing colours faithfully,
even overexposed skin tones.
Digital contrast circuitry provides a black stretch
function for more detail in black areas and a black
press function for improving the contrast impression
by simulating the S-curve of film.
AdvancedTriax Features
The full bandwidth of the Triax system allows remote
control of camera up to a distance of 2,400 meters
(7,875 feet). The Triax system uses full bandwidth R,
G and B signals. The double sideband modulation
provides automatic compensation of the amplitude
characteristics of each video channel. This results in
the best possible linearity, lower crosstalk and higher
signal to noise over the maximum cable length. The
chroma key quality is excellent as the primary colours
do not have to be derived. Teleprompt and viewfinder
signals maintain high performance even with long
cable lengths.
The communication facilities provide for two-wire or
four-wire high quality intercom signals.
The LDK 100 Triax is plug compatible with existing
ThomsonMultimediaBroadcastSolutionsbasestations
and full camera control is provided via Series 9000
UniversalCameraControlsystem.Basestation outputs
can include an optional serial digital video signal.
SuperXPander
An optional SuperXpander enables the camera to be
used with large lenses so extending the camera's use
in studio and EFP situations.
CameraHeadVersions
The camera head can be supplied in three different
versions depending on the type of sensor required.
TheFrameTransferCCDsensorversionofferssuperior
performanceandcan handle highlights of up to 600%.
The 2/3-inch sensors have a high dynamic range and
high linear sensitivity over all camera lens apertures.
FrameTransfer technologyensuresthat there isnolag
nor smear.
TheFrame Transfer DPM version uses Dynamic Pixel
Managementwhich allows the format ofthesensors to
be switched between 4:3 and 16:9 aspect ratios at the
touch of a switch without loss of horizontal or vertical
resolution. The 1000 pixels per line in both formats
ensures that there is no loss in the horizontal viewing
anglebut also ensures highresolutionin the red, green
and blue channels.
The Interline Transfer sensor version is a very cost-
effective camcorder that still provides superior digital
signal processing.
The Interline Transfer Wide (ITW) Switchable sensor
version is fitted with switchable aspect ratio IT CCD
sensors.Thisversionenables theformat ofthesensors
to be switched between 4:3 and 16:9 aspect ratios at
the touch of a switch. Aspect ratio switching to 4:3
ratio is achieved by activating two horizontal side
panels.