Hitachi V-21W - Manual (Page 13)

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Outline and features
The V-21W / V-21 is a new concept 2/3-inch 600,000 /
620,000 Pixel CCD camera that stresses fundamental
camera performance.
Advanced functions are realized by the new single
chip digital signal processor that improves gradation
response, color reproducibility and perceived
resolution. The DSP is fully digitized from processor
to encoder and incorporates a built-in noise reducing
function.
The design fully comprehends the needs of on-site
camerawork, with a rugged diecast frame that is light,
has a low center of gravity and is convenient to
operate.
Premier Performance Starring the Hitachi V-21W /
V-21 Digital Camera.
Outstanding Features
Resolution
Horizontal resolution of 750 / 900 TV lines is
achieved by the 2/3 inch 600,000 / 620,000 pixel
CCDs with microlenses and digital double speed
signal processing circuit.
Switchable 16:9 / 4:3 (V-21W only)
The aspect vatio is switchable between 16:9 and
4:3
to provide broad freedom for program production.
Picture quality is also preserved by using digital
system.
Newly crafted DSP
Hitachi's pinnacle holding LSI technology
combines the entire system from processor to
encoder into a single chip to even further reduce
the size and power consumption, while enhancing
stability.
The 10 bit A/D converter and 13 to 18 bit
processor promote high S/N and wide dynamic
range.
Signal to noise ratio
An S/N rating of 63 dB is attained by adding low
noise circuit technology to a newly developed
digital noise reduction circuit. Even at high gain,
clear low noise images can be obtained.
Sensitivity (standard 2000 lux, F11)
High gain (+24 dB) and Ultra-Gain (+12 dB) can be
combined for up to +36 dB gain increase.
Operation is enabled down to 0.5 lux (F1.4) and
0.8 lux (F1.8).
Setup card
Camera setup data can be saved to a setup card
(Compact Flash) and recalled when required.
Flexibility is offered to meet a wide assortment of
scene environments.
Versatile CCD drive functions
Preset type 5-step electronic shutter speeds.
Lock Scan to image computer monitors without
flicker.
Auto electronic shutter (AES) mode for
maintaining a fixed video level.
CC frame mode for improved vertical resolution.
Better picture quality from digital processing
Highlight chroma and auto knee
Color reproduction of highly luminous signals is
improved by the highlight chroma circuit, while
auto knee automatically compresses high
luminosity signals. These add up to wide
dynamic range.
Flesh tone detail
Smoothed and softened complexion flatters the
talent without sacrificing overall scene detail
Variable detail boost frequency
The center frequency of the detail
compensation signal is variable to allow selecting
the proper signal to match the scene.
6-vector and linear matrix
Full colorimetry control is built in with linear
matrix compensation for color reproduction plus
independently variable hue and saturation for six
colors to provide wide latitude for subjective
expression
Special gamma
Adjusts the gamma rising gain to improve
reproduction of dark scene components.
Flare compensation