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Color Portable VTR Akai VT-150
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Akai VC-150 Color Camera
Used Google
translator
Akai VC-150 Color Camera.
This color camera has an original design by two vidicon. One of them, color dissector mounted horizontally on
the axis of the lens. Second - vidicon luminance is
angled 90 degrees to the first chamber in the handle,
and the light is transmitted to it through a prism.
Image from the lens hits the target color dissector
through a complex vertically striped color filter, and
the output signals of the tube contains a mixture of all
three primary colors. After separation and conversion
chrominance signal, it is mixed with the luminance
signal to provide the composite video signal.
To reduce the size and weight of the camcorder, the
video signal processing circuit placed in the casing of
the recorder (two vertical boards along the rear end of the
body). On the camera except the start button is a
button White Balance (White Balance), switch for manual / automatic aperture control (Manual / Auto), and
sensitivity switch automatic aperture - low / medium /
high (Level 1/2/3). Iris control by an electric motor.
If you aim the camera at objects of different
illumination aperture ring begins to rotate to the
desired value. Lens FUJINON-TV-Z 1:2/12.5-75 H6X12.5 varifocal not removable . Black and white viewfinder -
CRT 1.5" in the viewfinder has a red LED indicating the
recording mode. Electret microphone is located above the
lens.
To
set the white balance, it is necessary to point the
camera at a white surface and hold the "White Balance"
button for 3 seconds. The setting is stored for 30
minutes. Real-time configuration changes can only be
observed in the video tape recorder connected to a color
TV. Built-in camera viewfinder in black and
white.
The camcorder is packed in a black leather case with
logo AKAI. Facing suitcase it from time to spoil, but inside
everything is preserved perfectly and the camera itself
is in good working condition. With the included lens
hood, eyecup with a lens for the viewfinder, two filter,
and shoulder strap.
Dimensions of the chamber without lens hood and filters
310 x 235 x 88 mm. Weight 2.54 kg.
Specifications
Video camera Akai VC-150.
Color System -
Vidicon Tube -
View Finder -
Recording Indicator Lamp -
Lens -
Aperture -
Scanning System -
Synchronization System -
Horizontal Frequency -
Vertical Frequency -
Horizontal Resolution -
Signal-To-Noise Ratio -
White Balance -
Ideal Subject Lighting Density
-
Automatic Sensitivity Control
Range -
Microphone -
Power Requirements -
Dimensions -
Weight -
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NTSC (PAL) two tube Frequency
Multiplex System
Luminance channel: 2/3" electrostatic focusing,
electromagnetic deflection type vidicon;
Chrominance channel: Akai
color dissector tube
1,5 type built-in electronic
view finder
Built-in
luminous diode inside view finder
6 x (12,5 to 75 mm) zoom lens,
F2 to closed
Automatic and manual aperture
systems
525 (625) lines, 2:1 interlace
system
External synchronization
system (utilizes VT-150)
15.734 (15.625) kHz
59.94
(50) Hz
More that 300 lines
Better than 40 db
White
Balance Switch
1.500 Lux (Minimum Subject
Lighting Density: 600 Lux using a 500 W Halogen
type lamp at 2m)
600 to 20,000 Lux (ND-3 standard
accessory: 2,400 to 80,000 Lux; ND-8 optional
accessory: 4,800 to 160,000 Lux)
600 ohms
non-directional electret microphone
DC 12V
(supplied from VTR-150 or VA-150 adapter)
88 (W)
x 235 (H) x 335 (D) mm (3,5 x 9,3 x 13,2")
including lens hood and hang grip
2,62 kg (5,76 lbs) |
Photos can be enlarged
 
   
 
 
 
IIn the picture below
the image with a video camera, digitized on a computer
before and after pressing the "White Balance".
The
experiment was conducted in a room with artificial
lighting. The camera was connected to a recorder while
it is in the "Stop" button, and capture device is
connected to the output of a video recorder. The camera
image is transmitted to the output of the recorder to "Stop"
and "Record".
 
 
 
Internal video camera impress. One of the
two vidicons is a video camera in the handle
 
 
 
 
At the bottom of the lens aperture
visible gear machine. Aperture adjustment ring is
rigidly connected to a large gear, which it rotates.
Natural lens in this video camera is not removable
 
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