File:40-foot_telescope_mirror.jpg
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Summary
Description40-foot telescope mirror.jpg |
English: Photo for the first speculum metal mirror made for William Herschel's 40-foot telescope on display in the science museum. |
Date | |
Source | Photo by User:geni |
Author | user:geni |
Permission (Reusing this file) |
CC-BY-SA GFDL |
Licensing
I, the copyright holder of this work, hereby publish it under the following licenses:
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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Items portrayed in this file
depicts
September 2008
image/jpeg
0.01666666666666666666 second
2.8
9.036 millimetre
250
d17696d392b1213cd62d8d09a63b4b33ec60c88d
2,241,843 byte
2,706 pixel
2,602 pixel
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 04:55, 13 December 2011 | 2,602 × 2,706 (2.14 MB) | Rotatebot | Bot: Image rotated by 270° (EXIF-Orientation set from 6 to 1, rotated 0°) | |
19:35, 27 November 2008 | 2,706 × 2,602 (2.14 MB) | Geni | {{Information |Description={{en|1=Photo for the first mirror made for William Herschel's 40-foot telescope on display in the science museam.}} |Source=Photo by User:geni |Author=user:geni |Date=sept 2008 |Permission=CC-BY-SA GFDL |other_versions= |
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Metadata
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Camera manufacturer | Canon |
---|---|
Camera model | Canon PowerShot G9 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/2.8 |
ISO speed rating | 250 |
Date and time of data generation | 16:22, 6 July 2007 |
Lens focal length | 9.036 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 16:22, 6 July 2007 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 16:22, 6 July 2007 |
Meaning of each component |
|
Image compression mode | 5 |
Shutter speed | 5.90625 |
APEX aperture | 2.96875 |
Exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash fired, auto mode, red-eye reduction mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 13,745.704467354 |
Focal plane Y resolution | 13,698.630136986 |
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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