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Luftpolsterfolien IMGP2719 wp
 

 

 

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Description
Deutsch: Verschiedene Luftpolsterfolien, von links nach rechts: 1. elektrisch leitfähig bedruckt, 2. Standardfolie, 3. antistatisch ausgerüstet für elektronische Komponenten, 4. Großnoppenfolie.
Date 14 February 2008(2008-02-14)
Source Own work
Author Smial
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Photo: Rainer Knäpper, License: artlibre

Flexible licenses: Feel free to choose one of the free licenses stated below. Usage ist free of charge, but it is not in the public domain. If you would like special permission to use, or license this image please contact me to negotiate terms.

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Licence Art Libre 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.
GNU head 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


U.S. quarter

This image has currency in it to indicate scale.

Avoid using objects such as coins for scale, 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 copyrighted.

Ideally, a photograph should include a ruler with the subject (as seen in this photo) or add a scale marking via an image editor instead (as seen in this photo). SI ("metric") units are the most commonly used worldwide (see metre, 1 E-2 m).

Examples of bad practice: here.

A tape measure


Common coin diameters for reference:

  • U.S. dollar:
    • 1¢: 19.05 mm , 0.75 in
    • 5¢: 21.21 mm , 0.79 in
    • 10¢: 17.91 mm , 0.71 in
    • 25¢: 24.26 mm , 0.94 in
    • 50¢: 30.61 mm , 1.22 in
    • $1: 26.5 mm , 1.02 in
  • Canadian dollar:
    • 1¢: 19.05 mm , 0.75 in
    • 5¢: 21.2 mm , 0.83 in
    • 10¢: 18.03 mm , 0.71 in
    • 25¢: 23.88 mm , 0.94 in
    • 50¢: 27.13 mm , 1.07 in
    • $1: 26.5 mm , 1.02 in
    • $2: 28 mm , 1.1 in
  • Pound sterling
    • 1p: 20.32 mm , 0.8 in
    • 2p: 25.91 mm , 1.02 in
    • 5p: 18 mm , 0.71 in
    • 10p: 24.5 mm , 0.96 in
    • 20p: 21.4 mm , 0.84 in
    • 50p: 27.3 mm , 1.07 in
    • £1: 22.5 mm , 0.89 in
    • £2: 28.4 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



Licensing:
GNU Free Documentation License

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EXIF data:
File name luftpolsterfolien_imgp2719_wp.jpg
Size, bytes 831172
Mime type image/jpeg
Image input equipment manufacturer PENTAX Corporation
Image input equipment model PENTAX *ist DS
Orientation of image 1
Image resolution in width direction 72/1
Image resolution in height direction 72/1
Unit of X and Y resolution 2
Exposure time 7/10
F number 160/10
Exposure program 3
ISO speed rating 200
Exif version 0221
Lens focal length 43/1
Date and time original image was generated 2008:02:15 15:38:43
Date and time image was made digital data 2008:02:15 15:38:43
Meaning of each component 
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Metering mode 2
Supported Flashpix version 0100
Color space information 1
Exif image width 1600
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Focal length in 35 mm film 64
Subject distance range 1
Interoperability index R98
Interoperability version 0100
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