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By: Hitachi
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Industrial Video System & Broadcast
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36x Zoom Chassis Camera - NTSC
Advanced digital signal processing (DSP) technology ensures outstanding color reproduction and low light performance, capable of capturing details such as facial features, clothing, and automobile colors that can serve as vital evidence. Setting a new standard for imaging quality, night or day, the Hitachi VKS655N marks another phase in the evolution of high-quality digital surveillance systems.

A newly designed 36x auto-focus optical zoom lens delivers enhanced resolution, clearly capturing subject details at a distance. Proprietary Hitachi auto-focus control makes it possible to track rapidly moving subjects, while the addition of Digital processing boosts sensitivity to a maximum of 1/1-second (VK S655N) or 1/0.75-second (VK-S655EN) exposure time, making it possible to capture bright, clear images in a variety of lighting situations.

In daylight conditions, the IR cut filter ensures clear, high-quality color images. At night or in other very low light situations, the IR cut filter is automatically removed to allow capture of bright, high-contrast black and white images. a 12x digital zoom delivers a maximum zoom factor of 432x. The improved lens design produces crisp clear details, even in peripheral areas of the image.

One extremely important requirement in the surveillance and crime prevention fields is the reproducibility of actual colors. The Hitachi VK-S655N recreates the actual color to the fullest extent possible not just in well-lit areas, but in darker ones, allowing more accurate depiction of the surveillance area. High-performance CCD teams with digital signal processing to achieve outstanding low-light performance, capable of capturing images in standard mode at a minimum subject illumination of 1.0 lx.

Hitachis frame noise reduction minimizes random noise and after-images often associated with moving subjects, making this high-performance unit suited to a variety of surveillance scenarios. Producing clear, sharp images even in challenging low-light conditions, this technology also facilitates image compression in network camera systems.

Digital processing boosts sensitivity to a maximum of 1/1-second (VKS655N) or 1/0.75-second (VK-S655EN) exposure time, making it possible to capture bright, clear images in a variety of lighting situations. In daylight conditions, the IR cut filter ensures clear, high-quality color images. At night or in other very low light situations, the IR cut filter is automatically removed to allow capture of bright, high-contrast black and white images.

The VK S655N can also provide the same 35x zoom mode as in the VK-S654N/EN. A 35x compatibility mode is available to ensure that no picture display problems occur even due to changes in the angle of view. Switching from the VK-S654N/EN will pose no problems caused by the difference in magnification.

CCD Image Sensor - Image Size 4.5mm Dia. (TYPE 1/4)
Total Pixels 410k (811 x 508)
Effective Pixels 380k (768 x 494)
Progressive Scan YES
Lens - Optical Zoom Magnification 36x
35x compatibility mode YES
Practical f-value 36x(3.3-119mm) / 35􀍇(3.4-119mm)
Practical H.angle 36x(60.2°(w)* - 1.8°(t)) / 35x(58.2°(w)* - 1.8°(t))
F-value F1.4(w) - F4.2(t)
Zoom Speed (Manual) 4.6s*/6.6s
(In Preset Trace / No-): 3.2s/2.0s
Focus - Auto VAF
Manual (Far/Near) Provided
Focal Range (Setting) infinity-1.5m(t) - 0.01m(w)*
IR Cut Filter Removable - Auto Pro. AER * (OFF - ON - 1/4* - 1/4k)
Manual (ON/OFF) Provided
Durability - Zoom/Focus/Iris 500k cycles
IR Removable 50k cycles
DSP DSP-8
Serial interface - Method speed: RS-232C : 57.6k / 38.4k / 19.2k / 9.6k / 4.8k* bps
Command Protocol EAP(Echo control based on Address Protocol)/AFP􀊢Ack control based on Function Protocol
RS232C logic voltage level 5V
Functions - Digital Slow Shutter YES w/o WDR
Frame Output OFF*/ON
Wide Dynamic Range OFF*/ON (Auto* [ offset ]/Manual)
Frame Noise Reduction OFF/ON*
Image Stabilizer OFF*/ON (Digital Zoom max. 1.3X)
Image Reverse OFF*/ON
Mirror OFF*/ON
Vertical Invert OFF*/ON
Image Freeze OFF*/ON
B&W OFF*/ON
Privacy Masking OFF/ON* [2 zone 2-D(2/1 screen)*/8 zone 3-D(4/1 screen)]
Fixed Privacy Masking OFF*/ON [optional􀉿12 x 24 units ]
Title Display OFF*/ON [optional􀉿24 characters]
Motion Detect OFF*/ON
Motion Tracking YES(area assignable)
Various Customizable Settings YES [ Preset store (max.111), WB tuning ]
Dynamic Spot Cancel YES
Slow Response AE 1x* - 254x
Digital Zoom - Zoom Magnification OFF*/ON (max. 12X)
Electrical Shutter - Auto Pro. AE (1/60 - 1/4ks)
Auto ( DS Shutter) Pro.AE *(1/2-1/4*-1/4ks:Seamless
Manual Shutter priority 1/1-1/30ks; Exposure priority F1.4 - F32; AGC priority 0 - 30 dB
Manual (Sensitivity) 64X, 32X, 16X, 8X, 4X, 2X
Iris Auto*/Manual
BLC (in WDR OFF mode) OFF*/ON
White Balance Auto*/Manual
Horizontal Resolution(Typ.) - Normal (1/60s)(NTSC)/(1/50s)(PAL) typ.540 min.520 TVL
Luminance S/N Ratio More than 50 dB
Min. Sensitivity (Typ.) - IR-cut ON (1/60s)(NTSC)/(1/50s)(PAL) 1.0 lx
IR-cut ON (1/4s)(NTSC)/(1/3s)(PAL) 0.1 lx
IR-cut OFF (1/4s)(NTSC)/(1/3s)(PAL) Approx. 0.01 lx (B/W)
Condition (F1.4(w), 50IRE)
Sync System Internal/External (60Hz)
Power - Supplied Voltage 9 - 12V DC
Power - Supplied Current (@9V) 290mA
Supplied Current Max.(@9V) 380mA
Consumption (@9V) all motors inactive 2.6W
Consumption Max.(@9V) Forcus/Zoom Motors active 3.4W
Video Output (NTSC/PAL) VBS:1.0Vp-p, Y/C Output
Video Output (Digital output) YUV422 8bit output (REC656 type)
Dimensions (W x H x D) 50 x 60 x 89.5mm (w/ M-case)
Weight Approx. 235g (w/ M-case)
No. of Connectors 4 [ (9pin/4pin : Analog Output) , (24pin/30pin : Digital Output) ]
Operating Temp. (Recommended) -10°C - 60°C (0°C - 40°C)

* Default Mode.


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Prices and specifications subject to change without notice.