Hitachi Cookware Z-HD5000 用户手册

Superb High Definition picture reproduction 

& enhancement tools

The Z-HD5000 camera system utilizes industry standard Hybrid 

Fiber-optic cable connectors made of high-strength stainless steel to 

insure durability and reliable performance under the most demanding 

TV Studio and Field production circumstances.  All command audio 

and video signals to and from the camera are digitally transmitted 

hence, totally immune to EMI/ RFI interference.  Camera power and 

cable condition supervision are also performed when using the 

Hybrid Fiber-Optic Cable (HFOC).  Full Auxiliary (up to 4 analog or 

digital, HD or SD) video return and individual Teleprompter facilities 

are also available with the Z-HD5000 transmission system.  The 

maximum HFOC length with applied camera power and fully 

operational facilities is 1,000 meters* (3,280 feet*) .

Unique to cameras in the Z-HD5000’ s price range are optical 

power meters at the camera head (via engineering menu) and on the 

front of the CU-HD5000 camera control unit.  These meters indicate 

the optical condition of both the receive and, transmit signals 

independently to accurately depict the proximity to the “digital cliff”, 

maximum cable distance or provide basic HFOC diagnostics in the 

field.

*HFOC distance with applied CCU power differs depending on the 

system configuration. 

It is dependant on the type of lens used, viewfinder, studio Adaptor, 

teleprompter and other accessories that may be connected and 

thereby consuming power otherwise available for the camera head.

Hitachi cameras were the first on the market to recognize and 

implement 14-bit analog-to-digital conversion.  The Z-HD5000 takes 

full advantage of the increased dynamic range output of the NEW 

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analog-to-digital converters.  These high speed ADCs are the bridge 

between the serial output of the CCDs and the advanced Hitachi 

processor.  They assure that every nuance of the image captured 

and, converted to electrical energy by the sensors is interpreted in 

the digital domain resulting in faithful image reproduction.

Each essential part of the Hitachi Z-HD5000 camera system has its 

own DSP processor.  Different DSP ICs are used independently for 

the HDTV camera head processing, the transmission system and the 

Camera Control Unit (CCU) processing.  The new, power-efficient 

Digital Signal Processor LSI’ s are designed under the 65nm rule 

with dynamic processing capability in excess of 30-bits per pixel, per 

RGB channel.   Hitachi’ s DSP processors are designed for and, can 

adopt to progressive readout HDTV sensors.  The processing 

dynamic headroom of the Z-HD5000 in theory (14-bit), allow for 

signals in excess of 85dB to be faithfully reproduced.  Additional 

digital encoding at the camera head and CCU provides low 

interference and high signal integrity for both digital and analog 

outputs. 

An outstanding overall signal-to-noise ratio specification of 58dB is 

achieved by use of our own low-noise circuit technology.  The 

standard sensitivity is rated at F10 with 2000 lx. 

Even at high gain, clear images are obtained with little noise.  

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The Z-HD5000’ s Black stretch function allows for better reprod- 

uction of dark or underexposed areas by evenly raising the 

luminance response without changing the pedestal or white clip/ 

knee settings.  It is especially useful in high contrast image venues, 

outdoors or sports production.

A new and useful function implemented in the Z-HD5000 is the 

Ultra-Gamma function.  It dramatically increases the exposure 

latitude of the camera in shooting conditions where lighting and 

scenery vary widely in intensity. Seven different ultra-gamma 

responses are pre-programmed to suit just about every possible 

adverse shooting condition.

The Skin-tone masking function provides “fine Painting” (hue and 

saturation) of Skin tones without affecting other colors in the scene.  

This functions additional and independently from the linear and 

12-vector-masking functions thereby adding an additional 

color-correction (Triple-masking) Channel to the overall image color 

control.

In addition to the extensive colorimetry controls offered in the 

Z-HD5000, the overall color saturation can be varied to achieve 

“dramatic” or artistic “effects”.

The Knee Saturation function dynamically restores color saturation to 

scene highlights above the Knee point.  Color-saturated highlights 

lost in overexposed scenes are now visible.  This function provides 

excellent results in ; for example when imaging : high-contrast, 

sunny outdoor scenes, fireworks, concerts, theatre stage lighting, 

and colored night scenes.

The High-chroma detail adjustments allow precise control of the 

detail level in highly color-saturated portions of the picture such as 

the petals of a rose or a colorful fabric.

The Skin-tone Detail functions allow a flesh color-based softening of 

the image to achieve the impression of more youthful TV 

personalities.  2 individual memories exist as well as a function to 

automatically detect the hue, saturation and luminance of the 

Skin-tone to be affected.  This function is not limited to Skin-tones 

only ; it can increase or decrease the sharpness of any pair of colors 

in the image.

Hitachi Z-HD5000 Multi-application HDTV 

Studio and Field Production Camera

Skin tone masking OFF

Knee Saturation OFF

Knee Saturation ON (Simulated image）

Skin-tone Detail OFF

Skin-tone Detail ON (Simulated image）

Skin tone masking ON (Simulated image）

High-chroma detail OFF

High-chroma detail ON (Simulated image）

Color corrected (Simulated image）

Original Image

ULTRA GAMMA

OUTPUT VIDEO

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0

100

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400

500

600

25

50

75

100

125

150

INPUT SIGNAL

Standard

1 (90%)

2 (85%)

3 (80%)

4 (75%)

5 (70%)

6 (65%)

7 (50%)