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Summaryedit
Description |
English: A sample of a 1,7kg Hafnium crystal bar, made by van Arkel-de Boer process. The real background is removed. The shadow is added via Photoshop.
Deutsch: Ein 1,7kg Abschnitt einer Hafnium "crystal bar", hergestellt nach dem van-Arkel-de-Boer-Verfahren. Das Stück wurde freigestellt und ein künstlicher Schatten via Photoshop hinzugefügt.
Français : Lingot de hafnium cristallisé, selon le procédé Van-Arkel-de-Boer. Le fond d'origine a été remplacé par un fond ombré créé à l'aide du logiciel Photoshop.
Polski: Pręt z krystalicznego hafnu otrzymany w procesie jodkowym.
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Date | |
Source | Own work |
Author | Alchemist-hp (talk) (www.pse-mendelejew.de) |
This photo was taken by Alchemist-hp. If you use one of my photos, an email (account needed) or a message or direct to: my email account would be greatly appreciated. |
This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Focus stack with Helicon Focus of 8 images..
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Assessmentedit
This template is deprecated.
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This is a featured picture on Wikimedia Commons. We think it is one of the finest images on Commons; see its nomination. If you have an image of similar quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it. |
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Licensing:edit
This file is licensed under the Creative Commons ‘Attribution-NonCommercial-NonDerivative 3.0 (US)’ Licence: https://creativecommons.org/licenses/by-nc-nd/3.0/ Diese Datei steht unter der Lizenz Creative Commons „Namensnennung-keine kommerzielle Nutzung-keine Bearbeitung 3.0 US“ Lizenz: https://creativecommons.org/licenses/by-nc-nd/3.0/deed.de |
Copyleft: This work of art is free; you can redistribute it and/or modify it according to terms of the Free Art License. You will find a specimen of this license on the Copyleft Attitude site as well as on other sites. |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Germany license. | ||
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 only as 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. | 1.2 only |
Free Art License
EXIF data: | |
File name | hf-crystal_bar.jpg |
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Size, Mbytes | 2.9334326171875 |
Mime type | image/jpeg |
Camera manufacturer | Canon |
Camera model | Canon EOS 5D Mark II |
Orientation of image | 1 |
Image resolution in width direction | 72 |
Image resolution in height direction | 72 |
Unit of X and Y resolution | 2 |
Exposure time | 1/4 sec (0.25) |
F number | f / 8 |
Exposure program | 3 |
ISO speed rating | 200 |
Exif version | 0221 |
Lens focal length | 100 mm |
Date and time original image was generated | 2009:06:21 17:41:30 |
Date and time image was made digital data | 2009:06:21 17:41:30 |
Meaning of each component | |
Shutter speed | 2 |
Aperture | 6 |
Exposure bias | 0.66666666666667 |
Metering mode | 3 |
User comments |