Image:Xd-memory-card-comparison.jpg

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[edit] Summary

Comparison between an XD-Picture Card and a United States penny. Replaces the copyright XD Picture Card with penny.jpg, however remains to be fair-use due to the copyright markup on the flash card.

This scan is released under the Public Domain, but note the copyrighted logo on the flash card. Used in Computer forensics for comparative purposes, no freeuse possible.

This image has currency in it to indicate scale. The coin depicted has a diameter of 19 millimetres (0.75 in).

Using objects such as coins for scale is discouraged, as they will require people unfamiliar with them to look up the dimensions or guess, both of which defeat the purpose of the object in the first place. Coins are particularly bad as they can reinforce a geographical bias, and some coins' designs are not free content.

If possible, upload a photograph of the subject using ruler for scale (example) or add a scale marking via an image editor instead (example). SI/metric units are the most commonly used worldwide (see metre, 1 E-2 m).

Common coin diameters for reference:
U.S. dollar: 1¢: 19 mm, 0.75 in; 5¢: 21 mm, 0.84 in; 10¢: 18 mm, 0.71 in; 25¢: 24 mm, 0.96 in; 50¢: 31 mm, 1.21 in; $1: 26.5 mm, 1.04 in.	Canadian dollar: 1¢: 19 mm, 0.75 in; 5¢: 21 mm, 0.83 in; 10¢: 18 mm, 0.71 in; 25¢: 24 mm, 0.94 in; 50¢: 27 mm, 1.07 in; $1: 26.5 mm, 1.04 in; $2: 28 mm, 1.10 in.	Pound sterling: 1p: 20.32 mm, 0.80 in; 2p: 25.91 mm, 1.02 in; 5p: 18.00 mm, 0.71 in; 10p: 24.50 mm, 0.96 in; 20p: 21.40 mm, 0.84 in; 50p: 27.30 mm, 1.07 in; £1: 22.50 mm, 0.89 in; £2: 28.40 mm, 1.12 in.	Euro: 1c: 16.25 mm, 0.64 in; 2c: 18.75 mm, 0.74 in; 5c: 21.25 mm, 0.84 in; 10c: 19.75 mm, 0.78 in; 20c: 22.25 mm, 0.88 in; 50c: 24.25 mm, 0.95 in; €1: 23.25 mm, 0.92 in; €2: 25.75 mm, 1.01 in.

[edit] Licensing

This is a logo of an organization, item, or event, and is protected by copyright and/or trademark. It is believed that the use of low-resolution images on the English-language Wikipedia, hosted on servers in the United States by the non-profit Wikimedia Foundation, of logos for certain uses involving identification and critical commentary may qualify as fair use under United States copyright law. Any other uses of this image, on Wikipedia or elsewhere, may be copyright infringement. Certain commercial use of this image may also be trademark infringement. See Wikipedia:Non-free content and Wikipedia:Logos.

This tag must have an accompanying fair use rationale which must be unique to the usage of THIS image in each article in which it is used. You must also give the source and copyright information for all fair-use images uploaded.

Use of the logo here does not imply endorsement of the organization by Wikipedia or the Wikimedia Foundation, nor vice versa.

File history

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	Date/Time	Dimensions	User	Comment
current	02:38, 2 April 2006	587×288 (116 KB)	Mrmiscellanious (Talk \| contribs)	(Comparison between an XD-Picture Card and a United States penny. Replaces the copyright Image:XD Picture Card with penny.jpg, however remains to be fair-use due to the copyright markup on the flash card. This scan)