File:330-ps-7805-usn-686574 16324368710 o.jpg
Original file (2,900 × 2,216 pixels, file size: 2.39 MB, MIME type: image/jpeg)
Captions
Summary
[edit]Description330-ps-7805-usn-686574 16324368710 o.jpg |
English: 330-PS-7805 (USN 686574): Television monitor located in the control tower at U.S. Naval Air Station, Alameda, California. Air Controlman Second Class R.F. Slaughter, USN, controls air traffic through a system consisting of three television cameras which relay pictures to three 12-inch video monitors in the airfield control tower. The remotely controlled closed-circuit system permits the Air Controlman to see different portions of the various runways, which are blocked off by intervening buildings. Naval Air Station, Alameda, is the first installation of its type to employ television for this purpose. Photograph released April 12, 1956. (2/11/2015). |
Date | |
Source | National Museum of the U.S. Navy |
Author |
This file is lacking author information.
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Licensing
[edit]Public domainPublic domainfalsefalse |
This image is a work of a U.S. military or Department of Defense employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States.
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current | 19:38, 9 July 2018 | 2,900 × 2,216 (2.39 MB) | Tyler de Noche (talk | contribs) |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D80 |
Exposure time | 1/320 sec (0.003125) |
F-number | f/9 |
ISO speed rating | 1,600 |
Date and time of data generation | 11:06, 11 February 2015 |
Lens focal length | 18 mm |
Width | 3,872 px |
Height | 2,592 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS6 (Windows) |
File change date and time | 06:01, 12 February 2015 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 11:06, 11 February 2015 |
Meaning of each component |
|
Image compression mode | 4 |
APEX shutter speed | 8.321928 |
APEX aperture | 6.33985 |
APEX exposure bias | 0 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 90 |
DateTimeOriginal subseconds | 90 |
DateTimeDigitized subseconds | 90 |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 27 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Hard |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 3073408 |
Lens used | 12.0-24.0 mm f/4.0 |
Date metadata was last modified | 01:01, 12 February 2015 |
Unique ID of original document | 7595F19B9F23B9CFA4BDBBDD3F7ECAC6 |