Z-HD5000

Premier user of 16-bit analog-to-digital conversion

The Z-HD5000 takes full advantage of the increased dynamic range output of the NEW imagers by using 3 (Red, Green, Blue channel) 16-bit 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.

Hitachi's advanced digital signal processing

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 (16-bit), allow for signals in excess of 58dB 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.

Real-time Lens Aberration Correction (RLAC)

Modern HDTV lenses can still produce certain optical distortions. One of these called "Lateral chromatic aberration" can be reduced in certain model of lenses when used with the Z -HD5000 camera system. The Hitachi function is called RLAC meaning "Real-time-lensaberration- correction" and it dynamically corrects the image using the correction data provided by the digital interface between the lens and camera.

Luminance response tools

Black stretch

The Z-HD5000' s Black stretch function allows for better reproduction 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.

Ultra-Gamma

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.

Other Useful Production Camera Features

Prompter and floor monitor power

Enough AC Power available to drive 2x 24inch LCD monitors with either Hybrid Fiber Cable or Digital Triax CCUs.

Focus Assist

Focus Assist supports the camera operator in finding the right focus in the viewfinder. The Area Marker detects edges inside area, while a focus indicator shows the actual detail level by a horizontal line.

Gray-Scale automatic setup

The Z-HD5000 offers the Gray-Scale Automatic Setup function to optimize the optical parameters that could negatively affect the image you are trying to capture and faithfully reproduce. The Gain, Gamma, and Flare are the video signal functions that vary from lens to lens.

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