File:Diaframma a iride, per obiettivi composti - Museo scienza tecnologia Milano 05917 foto.jpg
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Captions
diaframma a iride, per obiettivi composti ( ) | ||||||||||||||||||||||||
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Author |
Voigtländer & Sohn (costruttore) |
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Title |
diaframma a iride, per obiettivi composti |
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Description |
Italiano: Diaframma a iride costituito da una serie di lamelle metalliche apribili manualmente, montate su un telaio in mertallo e ottone a forma di anello Le due estremità sono filettate per l'avvitamento delle altre parti dell'obiettivo componibile Lateralmente è inserita una levetta scorrevole che permette di aprire e chiudere le lamelle.
Regolazione della quantità di luce che passa attraverso un obiettivo di apparecchio fotografico.
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Date |
between 1870 and 1920 date QS:P571,+1500-00-00T00:00:00Z/6,P1319,+1870-00-00T00:00:00Z/9,P1326,+1920-00-00T00:00:00Z/9 |
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Medium | ottone | |||||||||||||||||||||||
Dimensions |
height: 25 cm (9.8 in); diameter: 55 cm (21.6 in) dimensions QS:P2048,25U174728 dimensions QS:P2386,55U174728 |
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Collection |
institution QS:P195,Q947082 |
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Accession number |
5917 |
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Object history | Ganzini | |||||||||||||||||||||||
Source/Photographer | Catalogo collezioni (in it). Museoscienza.org. Museo nazionale della scienza e della tecnologia Leonardo da Vinci, Milano. | |||||||||||||||||||||||
Permission (Reusing this file) |
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:14, 21 May 2016 | 1,280 × 853 (98 KB) | Federico Leva (WMIT) (talk | contribs) | {{ICCD TRC | institution = {{institution:Museoscienza}} | permission = {{cc-by-sa-4.0}} | RSR1 = Brenni, Paolo | CTP = Industria, manifattura, artigianato | AUT1R = costruttore | AUT1N = Voigtländer & Sohn | CMPD = 2008 | INV1N = 5917 | CTC = foto... |
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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 |
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Camera model | Canon EOS 400D DIGITAL |
Exposure time | 1/200 sec (0.005) |
F-number | f/5 |
ISO speed rating | 100 |
Date and time of data generation | 14:54, 16 May 2008 |
Lens focal length | 70 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS2 Windows |
File change date and time | 09:16, 20 May 2008 |
White point chromaticity |
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Chromaticities of primarities |
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Color space transformation matrix coefficients |
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Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 14:54, 16 May 2008 |
Meaning of each component |
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APEX shutter speed | 7.6438598632812 |
APEX aperture | 4.6438598632812 |
APEX exposure bias | 0.66666666666667 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
Focal plane X resolution | 4,433.2953249715 |
Focal plane Y resolution | 4,453.6082474227 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Scene capture type | Standard |
Supported Flashpix version | 1 |
Image width | 1,280 px |
Image height | 853 px |
Date metadata was last modified | 11:16, 20 May 2008 |