File:Flashlamp ion spectral line radiation output.JPG
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Size of this preview: 800 × 239 pixels. Other resolutions: 320 × 96 pixels | 640 × 191 pixels | 1,024 × 306 pixels | 2,872 × 858 pixels.
Original file (2,872 × 858 pixels, file size: 482 KB, MIME type: image/jpeg)
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Summary
[edit]DescriptionFlashlamp ion spectral line radiation output.JPG |
English: Spectral line radiation from a xenon flashtube operated at high voltage and low current. The tube was under-energized to allow the camera to photograph it unfiltered. Although the greenish-blue arc looks similar to the flash' appearance to the naked eye, the bright blue reflected off the table was not visible. This is caused by the camera being able to image the strong infrared lines around 900 nm,[1] which the camera "sees" as blue.[2] |
Date | (UTC) |
Source | Own work (Original text: I (Zaereth (talk)) created this work entirely by myself.) |
Author | Zaereth (talk) |
Licensing
[edit]Public domainPublic domainfalsefalse |
This work has been released into the public domain by its author, Zaereth at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: Zaereth grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.Public domainPublic domainfalsefalse |
Original upload log
[edit]The original description page was here. All following user names refer to en.wikipedia.
Date/Time | Dimensions | User | Comment |
---|---|---|---|
2009-09-14 18:28 | 2872×858× (493510 bytes) | Zaereth | {{Information |Description = Spectral line radiation from a xenon flashtube operated at high voltage and low current. The greenish-blue arc doesn't appear very bright, as most of the output is near infrared. |Source = I (~~~) created this wor |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:27, 12 May 2016 | 2,872 × 858 (482 KB) | BD2412 (talk | contribs) | Transferred from en.wikipedia |
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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 | Canon |
---|---|
Camera model | Canon PowerShot A470 |
Exposure time | 1/8 sec (0.125) |
F-number | f/4 |
ISO speed rating | 200 |
Date and time of data generation | 10:11, 13 September 2009 |
Lens focal length | 12.051 mm |
File change date and time | 10:11, 13 September 2009 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 10:11, 13 September 2009 |
Meaning of each component |
|
Image compression mode | 3 |
APEX shutter speed | 3 |
APEX aperture | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 13,714.285714286 |
Focal plane Y resolution | 13,714.285714286 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
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