File:Cryptograph by Gravelle CNAM-IMG 0558.jpg
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Original file (1,633 × 1,634 pixels, file size: 432 KB, MIME type: image/jpeg)
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Summary
Object
Gravelle cryptograph - CnAM 14452 | ||||||||||||||||||||||||
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Title |
Gravelle cryptograph - CnAM 14452 label QS:Len,"Gravelle cryptograph - CnAM 14452"
label QS:Lfr,"Cryptographe chiffreur de Gravelle - CnAM 14452" |
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Object type | cipher disk | |||||||||||||||||||||||
Date | 1894 | |||||||||||||||||||||||
Medium | copper and ferroalloy | |||||||||||||||||||||||
Dimensions |
thickness: 2 cm (0.7 in) ; diameter: 13 cm (5.1 in) ; mass: 360 g (12.6 oz) dimensions QS:P2610,+2U174728 dimensions QS:P2386,+13.00U174728 |
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Collection |
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Accession number |
14452-0001- (Conservatoire national des Arts et Métiers) |
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References | Cryptographe chiffreur système Gravelle (French) |
Photograph
Date | Taken on 9 July 2006, 15:31 (according to Exif data) | ||
Source | Own work | ||
Author | Rama | ||
Permission (Reusing this file) |
I, the copyright holder of this work, hereby publish it under the following licenses: This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 France license. Attribution: Rama
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 France license. Attribution: Rama
You may select the license of your choice. |
Items portrayed in this file
depicts
0.02222222222222222222 second
2.8
60 millimetre
400
image/jpeg
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:58, 17 July 2006 | 1,633 × 1,634 (432 KB) | Rama | {{subst:Rama}} Category:Musée des Arts et Métiers |
File usage
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Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer | Canon |
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Camera model | Canon EOS 10D |
Exposure time | 1/45 sec (0.022222222222222) |
F Number | f/2.8 |
ISO speed rating | 400 |
Date and time of data generation | 15:31, 9 July 2006 |
Lens focal length | 60 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 15:31, 9 July 2006 |
Y and C positioning | Centered |
Exif version | 2.21 |
Date and time of digitizing | 15:31, 9 July 2006 |
Image compression mode | 3 |
APEX shutter speed | 5.4918518066406 |
APEX aperture | 2.9708557128906 |
APEX exposure bias | 0 |
Maximum land aperture | 2.9708557128906 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Focal plane X resolution | 3,443.9461883408 |
Focal plane Y resolution | 3,442.0168067227 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |